ETA Valjoux 7750 caliber automatic watch movement

ETA/Valjoux Caliber 7750

Eta Valjoux 7750 Drawing

Manufacturer ETA / Valjoux
Caliber Number 7750
Based On Valjoux 7733 (manual wind)
Movement Type Automatic
Jewels 25 (see below)
Lignes 13.25”’
Diameter
30mm
Height 7.9mm thick
Power Reserve ~48 hours
Vibrations Per Hour 28,800 (4 Hz) – early models were 21,600
Lift Angle 49 degrees
Anti-Shock System Incabloc
Regulator System ETACHRON
Chronograph System Three-plane cam style
Rotor Type
Ball bearing system
Rotor Winding Direction Uni-directional (clockwise)
Hand Windable?
Yes
Manual Winding Direction
Clockwise
Hand Sizes
2mm x 1.2mm x .25mm + 3 x .18mm (needs confirmed)
Features Central hours; central minutes; central chronograph seconds; small seconds subdial at 9:00; 30 minutes counter at 12:00; 12 hours counter at 6:00; day-date at 3:00
Hacking Seconds? Yes
Country of Manufacture Switzerland, Swiss made
Service Interval
~5 years
Known Models Breiting, Tag Heuer, IWC, Chronoswiss, Alpina, Sinn, Maurice Lacroix, Oris, Kobold Watches, Hamilton BelowZero, Gevril GV2 Chronograph, Baume et Mercier Formula S, Tockr Air Defender, Elysee Executive Flieger,  (Too many to list! Please add yours to comments below…)

The ETA/Valjoux caliber 7750 is one of the most recognizable and widely used automatic chronograph watch movements. It was based on the manual wind Valjoux caliber 7733, which itself was based on the Venus 188. Today, it is part of the “Mecaline” line of ETA movements. It was officially introduced t0 the watch world around 1973/1974 but after the first run was manufactured, the caliber wasn’t produced again until 1985 (thanks to mechanical timepieces gaining popularity once again). The 7750 was partially designed on a computer – a first for the watch industry.

Official documentation for this calibre was updated as recently as August 23, 2016 (see below).

Val 7750 vs ETA 7750:

Valjoux was a movement manufacturer that designed and produced the caliber 7750. Valjoux is now part of ETA. What used to be called the Valjoux 7750 is now called the ETA 7750, unless of course it is an original 7750 that was made by Valjoux before becoming part of ETA.

ETA officially calls it the “ETA 7750” on their tech sheets and drawings. Sometimes ETA also refers to it the “ETA 7750 Valjoux”. On Caliber Corner, we usually refer the these movements as ETA/Valjoux caliber 7750. Some watch brands refuse to call it the ETA 7750 and will list the movement as a Valjoux 7750 in their specs.

Brief History of Valjoux/ETA:

Valjoux (the name comes from Vallée de Joux) joined Ebauches SA (ESA) in 1944. ESA was acquired by SMH (Société de Microélectronique et d’Horlogerie). SMH, which was a combination of SSIH (Société Suisse pour l’Industrie Horlogère) and ASUAG (Allgemeine Schweizerische Uhrenindustrie AG), later turned into the Swatch Group (1985) and the absorbed Valjoux became part of ETA.

7750 Variations

As with other ETA movements, the 7750 is available in elabore, top, and chronometer grade. In addition to the base calibre 7750, the current lineup also includes the 7751, 7753, and 7754 variations.

  • 7750 (12/6/9 subdials with day/date at 3)
  • 7751 (12/6/9 subdials with central date hand, day/month at 12, moonphase at 6)
  • 7753 (3/6/9 subdials with date at 4)
  • 7754 (12/6/9 subdials with date at 3 and GMT hand)

There are also manual wind calibers 7760 (12/6/9 subdials with day/date) and 7765 (12/9 subdials with date).

Jewel Count:

Most modern examples of the caliber 7750 will have 25 jewels. The first versions had 17 jewels. There are other versions with 24 jewels.

Plastic Parts:

If you see plastic parts in your caliber 7750 watch movement, do not be alarmed. It does not mean you have a fake watch! The reset lever (stop lever) on the central chronograph wheel is constructed from plastic on many 7750s. Chronoswiss was the first watch company to start using a metal stop lever, which ETA subsequently began using as well. According to ETA, the parts made from plastic should not be cleaned during a service.

Day/Date:

Although the cal. 7750 was engineered to have a day/date calendar complication at 3:00, it doesn’t mean your watch will have either one. Some watch companies opt for a cleaner design without the day/date or with just a date.

7750 Clone Movements:

Since patent protection has expired on caliber 7750, other movement manufacturers have started to make their own version of the 7750. Sellita has the SW500 which is based on the 7750 and some of the Chinese companies are producing Chinese 7750 movements, for example the Shanghai 3LZF2.

7750 Chronograph Operating Instructions:

Pictured below is an image of a paper instruction manual for an ETA 7750 from 8-2-2005.

Eta Caliber 7750 Instructions - 414 889 02-02-2005

Setting the Time:

To set the time on your 7750 powered watch, pull the crown out two clicks to time-setting mode. If your watch is equipped with a screw-down crown, be sure to unscrew it first. With the crown in time-setting mode, turn it clockwise or counterclockwise to the desired time.

Setting the Calendar:

Extremely Important Note: Do not attempt to set the day or date on your watch while the hands are set between the hours of 7pm and 3am. You may see other sites say 10pm and 2am, but ETA officially states:

“Rapid date and day correction is not possible between 8 p.m. and 2 a.m.” -Source ETA 7750 Technical Communication, page 30 (see pdf below)

Just to be on the safe side, be as far out of that range as possible (just in case the hands weren’t installed exactly at 12am). If you set the day and day within those hours, the automatic calendar system is engaged to advance the datewheels to the next day and there is a chance to break something – even if nothing breaks, you may still cause the date to switch over at something like 6am rather than 12am.

To set the day/date on your 7750 watch read the extremely important note above first. Pull the crown out one click to calendar setting mode. Turn the crown clockwise (away from you) to set the date and counterclockwise (towards you) to set the day of the week.

Chronograph start/stop/reset:

Button sequence: Top, top, bottom.

  • Top button: Start/Stop
  • Bottom button: Reset

Eta Valjoux 7750 Chronograph Instructions

Chronograph Hand Lining Up:

Unlike quartz powered chronograph movements, mechanical watches do not have the luxury of using a reset sequence to get the chronograph hand to line up to 12:00. If your caliber 7750 powered watch has a hand that is not lining up, it could be a mechanical problem and should be inspected by a professional watchmaker. Your watch may need serviced or the hand might need to be reinstalled.

Is it OK to Leave the Chronograph Seconds Constantly Running?

It is not recommended to leave the central chronograph sweeping second hand in a constantly running or engaged state. With the way the gear train is set up on the 7750, this could add extra and unnecessary wear and tear. Additionally, by doing so your watch will experience a change in amplitude, leading to a loss of power reserve and accuracy.

Examples of Watches with the Cal. 7750:

Below is a 7750 found in a Gevril GV2 chronograph watch:

Eta Valjoux 7750 Example

The ETA/Valjoux in the photo below is from a Kobold Phantom Chronograph watch. It has a custom rotor decorated by the manufacturer.

ETA Valjoux 7750 caliber automatic watch movement

The below example of the caliber 7750 is from a Hamilton BeLOWZERO Chronograph.

Hamilton Caliber ETA 7750

This ETA 7750 example was submitted by Detroit Watch Company of their DWC M1 Woodward exhibition caseback series.

ETA 7750 in a Detroit Watch Company M1 Woodward

Video of Disassembly and Reassembly of the Cal. 7750:

ETA 7750 Tech Sheets/Drawings (pdf):

Additional Resources:

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Community Reviews & Questions:

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KeepTheTime.com
KeepTheTime.com
9 years ago

Also found in a Hamilton Khaki X-Wind

Cush77
Member
8 years ago

Absolutely flawless workhorse movement.

Trudo
Trudo
3 years ago
Reply to  Dr. Anson

Flawless until you’re in a hurry to set the time and date and since the first click is the date setting you forget to move the hands first and hastily set the date and hear something that doesn’t sound right in the watch as you turn the crown. Now it’s a flawed workhorse movement with a date that flips over at 5am every night. Flawless would be a watch that you can set anything anytime imho.

Kram Nonrev
Kram Nonrev
3 years ago
Reply to  Trudo

Get an Apple Watch if all your going to do is whine about it!

CCA_949
CCA_949
1 year ago
Reply to  Trudo

I hear you. That’s why, when in a hurry, you grab a solar powered with world time Casio. Others are liabilities. 😉

Taylor
Taylor
1 year ago
Reply to  Trudo

Learn how to set your watch properly and this won’t happen. This comment is like saying “my Ferrari is a piece of shit….I drive it daily and didn’t change the oil, but it runs like shit”. Well, no shit. Ignorance is not bliss.

H.T. Schmerdtz
H.T. Schmerdtz
1 month ago
Reply to  Taylor

More like saying, my Ferrari-which I had to get their permission to buy-has to be shifted 1st-3rd-5th-3rd-reverse-1st on every 7th startup or it will void the warranty and blow up the car. Multi-thousands of dollars later, you still have a malfunctioning artifact. Good luck with your worship

Trudat
Trudat
6 months ago
Reply to  Trudo

The number of downvotes is testament to the fact that pretty much everyone considers your comment as completely asinine.

Lay
Lay
8 years ago

That’s a beautiful finished 7750 in the pic above. Thanks for sharing.

Howard Lyttle
Howard Lyttle
2 years ago
Reply to  Lay

Here is yet another customisation of the 7750 movement from my planet ocean chronograph clone. Aswell as the rotor and bridge decoration the movement has been custom fit to utilise the sub dial at the three for hours and minutes for the chronograph thus having two hands on one subdial and therefor losing the 6 sub dial. The 9 sub dial is used for a constant second hand for the general time. Quite a task in itself i would think.?!!

20211222_183628.jpg
20211222_181941.jpg
Matt D.
Matt D.
1 year ago
Reply to  Howard Lyttle

That’s not a clone it’s a FAKE and you seem proud of that. LAME!

Howard Huge
Howard Huge
6 months ago
Reply to  Matt D.

Agreed.

Howard Huge
Howard Huge
6 months ago
Reply to  Howard Lyttle

Garbage photos of a garbage fake watch.

Mike O.
Mike O.
4 months ago
Reply to  Howard Lyttle

A fake Omega fitted with an equally fake movement. That’s not a 7750, it’s some sort of Bejing Special, likely made in some sweat shop. I hope you’re proud to wear a $10 piece of counterfiet garbage.

Joel
Joel
7 years ago

I have a chronometer grade one of these in my Omega Speedmaster Date 3210.50. Reset it for the date every month and it’s never more than 5-10 seconds off of atomic time. Great movement!

Chris
Chris
7 years ago

Superb movement. Top grade is used in Marathon’s CSAR military watch.

Igor Kozlov
Igor Kozlov
7 years ago

I just bought BrelluM Duobox Chronometer from http://www.brellum.ch
Great movt and exellent watchmakers work by Sebastien Muller.

trackback
Swiss Army Victorinox Alpnach 241195 | KeepTheTime Video Reviews
7 years ago

[…] Alpnach Chronograph Watch Reference: 241195 Movement: Automatic, Swiss made, 25 jewels Caliber: ETA Valjoux 7750 Case: Stainless steel Diameter: 43mm (48mm including crown, 34mm dial) Thickness: 15mm Weight: […]

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Breitling Chronomat Longitude Thunderbirds Limited Edition Watch (HD Video Review) | KeepTheTime Video Reviews
7 years ago

[…] Model: A20048 with A61172 (UTC Module) Movement: Automatic (UTC is quartz) Caliber: Breitling 13 (Valjoux 7750), Breitling 70 (UTC) Case: Stainless steel Diameter: 41mm (43mm including crown, 33mm dial) […]

Graham Boulter
Graham Boulter
6 years ago

I have recently purchased a Torgoen T36 chronograh with a Valjoux 7750 movement. Great watch but had it six days and it just stopped ! Thought it had wound down despite wearing it every day. Coaxed it into life for a short time but it just stopped again and nothing will coax it into life. Any ideas ?? P.S. Bloody hard to wind manually !

Maurice murphy
Maurice murphy
2 years ago
Reply to  Graham Boulter

Sounds to me like a manufacturing fault if new. Return to the manufacturer under guarantee. If it’s a used watch I’m afraid a service is needed. Expect to pay £375 upwards.

Javaid iqbal
Javaid iqbal
6 years ago

I have this movement in my victorinox swiss army infantry watch.

Bill
Bill
2 years ago
Reply to  Javaid iqbal

I love mine. It’s been running at only 2 seconds fast per day as well!

trackback
IWC Caliber 79350 Watch Movement | CaliberCorner.com
6 years ago

[…] ETA/Valjoux 7750 […]

trackback
Hamilton Caliber H-31 Watch Movement | CaliberCorner.com
6 years ago

[…] Found in the Hamilton Pan Europ limited edition watch, this caliber H-31 is a variation of the ETA/Valjoux 7750. […]

Has Watch
Has Watch
6 years ago

Does the 7750 always have 25 jewels?

Don Leidya
Don Leidya
6 years ago

ORIS BIG CROWN TIMER CHRONOGRAPH (Ref: 675.7648.4234.LS)
Oris 675 caliber has ETA 7750 as base. I am a proud owner of this watch, +/- 5-10 seconds per month. Great movement.

Latest Oris using Sellita, I hope it as good as ETA

Mike C
Mike C
6 years ago

Of all of the “vintage” watches I own, my 2008 Oris BC3 Chrono has this movement and while I haven’t officially had it measured, I can tell you that it’s MAYBE running about a minute fast after more than a month of wear. Very glad I own it.

Cisco
Cisco
6 years ago
Reply to  Mike C

Man I must be getting old if 2008 is considered vintage now. Anyway, I’ve heard good things about Oris watch and your BC3 sounds like it’s keeping perfect time. May I ask, do you use the chronograph often?

Albert L J Hall
Albert L J Hall
5 years ago
Reply to  Cisco

Forgetnto mention MIDO which is part of the SWATCH group and is now in the top five chrono makers. By the way most of the watchwes that use the ETAS Valjoux 7750 ar guilty of the ‘form over function disease. Take a rather small sized movement [ fits into a 37mm case easily] put itt into as REALLY oversized case, up the price by a couple of thou and Bobs yer brothers brother. Why does a TAG with a 7750 and no better spec than say a STEINHART cost three or even four timers as much. And why do they… Read more »

Bobby Bleu
Bobby Bleu
6 years ago

Just bought a Baume & Mercier Clifton Club Shelby Cobra Special edition Chronograph that uses this movement, Haven’t had it long enough to comment on how good it is yet. Just wanted you to be able to add my watch to your list.

Gary
Gary
6 years ago

Victorinox also uses the 7750 in the Air Boss Mach 9

trackback
ETA Caliber 7753 Watch Movement | CaliberCorner.com
6 years ago

[…] The ETA/Valjoux caliber 7753 is an automatic cam type chronograph movement. This movement is from the same family as the caliber 7750. […]

Tony
Tony
6 years ago

The Victorinox Airboss Mach 9 uses this movement.
comment image

POMI
POMI
3 years ago
Reply to  Tony

Why does it look backwards and no day/date with a date at the bottom? Weird one.

David T
David T
1 year ago
Reply to  POMI

The caliber is intentionally installed “backward” so that the knob at 2 o’clock can be used to turn the E6B slide rule (flight computer) bezel ring with the right hand, while wearing the watch on the left wrist. As a result, the chrono start button is now the 8 o’clock button, the reset button is 10 o’clock, and the crown at 9 o’clock must be wound toward the wearer (still clockwise) to wind manually. The date is in the window at 6 o’clock. Yes, it is “backward” from a standard watch configuration, but I’ve been wearing one for the past… Read more »

Kenseko
Kenseko
1 year ago
Reply to  David T

The good part about this “backward” thing is the pushers and crown, if the watch is on the left hand, don’t dig into your hand and accidentally start or stop the Chrono.

Gary Van Daele
Gary Van Daele
6 years ago

Makes the Airboss the best value with watches having a 7750. Display back also.

Gwilym Jones
Gwilym Jones
6 years ago

I’m sorry, this is a question not a comment. I hope you don’t mind but I bought a tag Aquaracer in October last year (2017) it’s number is CAY2110 is the movement an ETA7750 or a SELLITA? Many thanks.

Albert L J Hall
Albert L J Hall
5 years ago
Reply to  Gwilym Jones

Forgetnto mention MIDO which is part of the SWATCH group and is now in the top five chrono makers. By the way most of the watchwes that use the ETAS Valjoux 7750 ar guilty of the ‘form over function disease. Take a rather small sized movement [ fits into a 37mm case easily] put itt into as REALLY oversized case, up the price by a couple of thou and Bobs yer brothers brother. Why does a TAG with a 7750 and no better spec than say a STEINHART cost three or even four timers as much. And why do they… Read more »

Michael E
Michael E
5 years ago

I just got the Glycine Combat Chrono beautiful view of the 7750 on the back!

Michael E
Michael E
5 years ago

Just got my Glycine Combat Chrono with a beautiful view of the 7750 in the back!

Cush77
Member
5 years ago

My Oris TT1 has the 7750 and the rotor actually massages your wrist it spins so flawlessly, great movement perfect time keeping. Unfortunately the zipper heads have copied this movement for mass production.

Andre
Andre
5 years ago

My Fortis Flieger Professional Chronograph had this movement as well. Fantastic watch and a reliable movement!

fred
fred
2 years ago
Reply to  Andre

Can you manuel winding to ?? I plan to buy the Aeromaster chrono old radium with the UW-50 calibre

Thomas Aureli
Thomas Aureli
5 years ago

Also cased in my new TechnoMarine BlackReef 515021 50ATM DIVE WATCH

Richard Flair
Richard Flair
5 years ago

I have an 18 month old Hamilton Khaki King Chronograph which uses this movement. Moisture has penetrated the movement so I shipped back to Hamilton. They sent the following response:

“Movement shows signs of moisture
Bezel shows signs of shock
Moisture damage evident on the hands”

To repair they want to charge me $370. Isn’t this movement shock resistant? The watch has a two year manufacturer warranty which Hamilton will not honor because of the shock. Needless to say, I’m disappointed.

Nuno
Nuno
5 years ago

I have Zeno Watch Basel with this movent, very reliable, 6 years with no service, keeps time well, the only cons is push buttons for crono is hard to push.

trackback
Fortis Watch Review: The Fortis Pilot Classic Chronograph - Watch Ideas
5 years ago

[…] about this Fortis watch review and found out that their chronographs usually utilize the iconic ETA-7750 caliber which made me initially […]

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ETA/Valjoux Caliber 7751 Watch Movement | CaliberCorner.com
5 years ago

[…] ETA 7750 […]

William S Erb
William S Erb
5 years ago

Just got an ad on Facebook for an $1100 watch and they brag Seiko uses irt.

WTFizutalkinbout
WTFizutalkinbout
4 years ago
Reply to  William S Erb

Seiko does not use the ETA 7750 movements. Never have and never will. They don’t have to because they make all their own movements for their watches. I can’t even think of who would be mentioning Seiko and ETA7750 in the same ad!

Cush77
Member
4 years ago

They make their own movements absolutely, however if you loosened your helmet, you’d know they partnered with Valjoux briefly in late 90s using what’s referred to today as 7750 movement, the higher ups noticed it wasn’t cost effective because seiko wasn’t know as they are today, those models are highly sought after. THE Super Slope Diver and Dink my pink ladies version go in upwards of like 50 bucks, those zipperheads are just nutty froot loops sometimes;)

Rusty
Rusty
4 years ago

Do you happen to know the average weight of the Valjoux 7750 movement? One day from now to the last 10 years old? Does not have to be exact, just a rough estimate. I own a Festina Chronograph in solid 18k yellow gold, and it has the Valjoux 7750 movement in it, and I’m trying to guess the weight of the actual movement. The entire watch weighs 152 grams. Any info would be much appreciated. Thanks

LEONARDO DE PAULA JORDAO
LEONARDO DE PAULA JORDAO
5 years ago

Also Found in a Bell & Ross, by SINN 103

trackback
ETA 7750 or Valijoux 7750
4 years ago

[…] @rcsub, some further reading material for you to chew on…ETA/Valjoux Caliber 7750 Watch Movement | CaliberCorner.com Reply With […]

Berton Kanne
Berton Kanne
4 years ago

I have a Alexander brand Chrono with this movement. Outstanding performance and accuracy except it starts changing the date at least three hours before midnight. Is this typical?

Dillon R
Dillon R
4 years ago
Reply to  Berton Kanne

I’ve had maybe 20 watches with this 7750 movement over the years. Not a one of them changed dates at 12 AM on the nose. I can recall the day starting to flip 3 hours before midnight and then the date not flipping until hours later after midnight. I even had one that began the changeover after midnight at 2 or 3 AM. I am sorry to say that I can only add my experience from watches I’ve had before since I no longer own any chronograph.

Terry Watkins
Terry Watkins
4 years ago

I own a Heuer 13.1 chronograph ( valijoux 7765) which I love. Can anyone advise if sweep hand should be zeroed or running in every day use.

watchman48
watchman48
4 years ago

I own a Baume & Mercia formula S with this valjoux7750 it has always worked flawless from when I purchased it and is still going strong

Renaldo Valentin
Renaldo Valentin
4 years ago

I’ve enjoyed the 7750 over the years in many different watches. Bulova Accutron, Victorinox, & Tissot just to name a few. My experience is that after settling in the everyday watch winder, they all ran consistently at +5 seconds a day. That is about average specs for this movement to the +/- a day. Now a couple years ago I got a Tissot chrono that still uses a 7750 not their newer collaborated movements w/ Eta. Initially specs where the same as usual +5 seconds a day, however I broke the crown & sent the watch in for service to… Read more »

Brian
Brian
4 years ago

My Maurice LaCroix Masterpiece MP-6318 is powered by a modified 7750 – Great movement

trackback
ETA Caliber 7754 Watch Movement | Caliber Corner
4 years ago

[…] caliber 7754 is based on the ETA/Valjoux 7750. The main difference between the two movements is that the 7754 has an additional GMT hand (second […]

Ralph Corsi
Ralph Corsi
4 years ago

I have two watches with the 7750, one is a Tissot PRS 516, and the other is a Hamilton Khaki Crosswind. As a pilot, I love having the chronograph to check fuel usage, compute my range and flight time. Both watches look beautiful and keep good time. They are rather large compared to my Omega Moon Watch but you can easily get use to the size.

John.
John.
4 years ago

I have a Victorinox Swiss Army V241187 with this movement but the day complication was omitted, The date is in the bottom subdial at 6 o’clock.
I think mine is the later 28,800 BPH version as it was made in 2008 and has 25 jewels.

WatchFan
WatchFan
3 years ago

Sitemaster needs to update “ It does mean you have a fake watch!” up in the Plastic Parts section in the article to read ” It does not mean you have a fake watch!”

gordon.
gordon.
3 years ago

Also found in the LIV P-51 chronograph ,

trackback
New Watch Alert 7/31/2020 - The Truth About Watches
3 years ago

[…] amongst you will note the word “flyback.” It’s accomplished here by modifying an ETA 7750, substituting column-wheel control for a lever-and-cam mechanism. Which should make timing multiple […]

Laszlo Denes
Laszlo Denes
3 years ago

Can someone identify the movement in the photo? The bottom side has 7750 clearly etched under the balance wheel alongside the ETA logo. At first glance it looks like a 7753, but the date indicator and its related mechanism is missing. Furthermore, I can’t find any reference in the detailed PDF drawings of the 7753 from ETA that looks anything like the top wheel with that cymbal-like attachment. May it be a manufacturer’s own modification? I have come across an item on eBay that looks like this movement hiding under a fake Rolex dial. I would appreciate it if anyone… Read more »

7750.jpg
rolex dial.jpg
Lay
Lay
3 years ago
Reply to  Laszlo Denes

I’m not sure if discussion of fakes is allowed on here, but I think what you have there is definitely more a 7753 than 7750 from the looks of the subdials. Odd that it is stamped 7750. I’d say avoid that listing. Try to post on the 7753 page maybe someone there can help more than me.

trackback
Relojes Fortis - Comprar Reloj
3 years ago

[…] Realizando esta revisión reloj Fortis he descubierto que sus cronógrafos por lo general utilizan el icónico calibre ETA-7750. […]

Szosky
Szosky
3 years ago

28800 is definitely not 4 Hz.

Derrick
Derrick
3 years ago
Reply to  calibercorner

I think that might be an error, unless they measure hertz differently. If this truly does have 28,800 beats per hour, that would be 8Hz, not 4.

Caliber16
Caliber16
2 years ago
Reply to  Derrick

The vibration isn’t a beat. It requires 2 vibrations to generate 1 beat. It’s 4Hz.

Paolo Todesco
Paolo Todesco
3 years ago

Will it fit/work in panerai 1312?

trackback
Introducing : Laco München - Scottish Watches
3 years ago

[…] I will use my phone. I do appreciate the horological significance of them, especially the classic Valjoux 7750, but for me they are generally not a practical addition to a watch. I think this is where Laco have […]

Alfredo Castañeda
Alfredo Castañeda
3 years ago

Tourneau 320.0a

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