Can't figure out what movement is in your watch? Try posting in the Movement Identifier section of the CC forum
Cc Bg 1920 1280
Seiko Caliber V157

Seiko Caliber V157

Manufacturer Seiko
Caliber Number V157, V157A
Type Solar Powered (quartz)
Diameter 28.6mm
Casing Diameter
24mm
Thickness
3.5mm
Total Height
5.8mm (to top of pinion)
Jewels
2
Frequency
32,768 Hz
Integrated Circuit
C-MOS-IC
Capacitor Number 302324Y
Stem 351892 (tap 11)
Hacking Seconds?
Yes
Hand Sizes 1.10mm / 0.65mm / 0.20mm
Functions Hours, minutes, central seconds, date at 3:00 (4:00 on the Street Series models)
Country of Manufacture Japan
Known Models Seiko SNE541, SNE543 (add more in the comments below…)

The Seiko caliber V157 (actually marked V157A) is found in some Seiko solar-powered watches, including the exclusive Street Series Solar Divers. This caliber is part of the Seiko Watch Corporation V family/series of solar powered movements.

V157 VS V157A:

The movement in your timepiece may actually be signed with the caliber number V157A. As with most (if not all) Seiko movements, the trailing letter indicates the evolution or change-log of the movement, starting with A as the first release. Therefore, V157 is the same as V157A. As of this post, there is not a V157B, V157C, and so on.

V157 VS V158:

There is a similar Seiko caliber V158, with the main difference being that the V158 has a day/date window at 3:00, and the V157 only displays the date at 3:00.

Accuracy:

Seiko claims that the caliber V157 will maintain accuracy of +/- 15 seconds per month at normal operating temperatures of about 5C to 35C (41F – 140F).

Battery Change:

The caliber V157 is a solar powered watch with a manganese titanium-lithium rechargeable capacitor. It is not a normal battery. The number is MT920, or more specifically: 302324Y. Order one here

Charging Times:

The chart below shows how long different lights sources can take to fully charge the cell in the V157. This ranges from 120 hours to 9 hours of constant light source. A full charge can last up to 10 months.

Seiko Caliber V157 Charging Times

Interesting Note:

Although there is an instruction manual for dive watches with caliber V157 or V158, there is also another instruction manual that combines the following calibers: V110, V111, V114, V115, V116, V137, V145, V147, V157, V158, V181, V182, and V187.

Examples of watches with V157:

 

Additional Resources:

  • Seiko official instruction manual is here
  • Shop for the Street Series Solar Diver here
Caliber Corner is the world's most popular resource for watch movement pics, specs, mods and DIY repairs. Be sure to check out the member's forum and follow @calibercorner on Twitter, Instagram and YouTube (NOT Facebook). Join our mission to spread movement awareness! Login/Sign-up

Community Reviews & Questions:

  • Keep comments respectful and follow our community guidelines.
  • Keep comments on the topic of Seiko Caliber V157

For off topic or general watch questions, post in the Caliber Corner Forum.

guest

30 Comments
oldest
newest most voted
Inline Feedbacks
View all comments
Ricky
Ricky
3 years ago

Mine’s running within +15 seconds per month but there must be a bit of play in the gear train as it sometimes hits the indices and sometimes doesn’t. (Seiko Street Tuna SNE535P1)

jalind
Member
3 years ago

It’s not a “capacitor”, it’s a rechargeable *BATTERY*. I wish you’d get the technical terminology correct. Capacitors are inherently *NOT* rechargeable, nor are they long-term energy storage devices. Sheesh!! Seeing this misuse of the term is like hearing fingernails screeching across a blackboard at 150 dB.

Yurri
Yurri
3 years ago
Reply to  John Lind

Your comment is like fingernails on a blackboard. In solar powered watches, the rechargeable battery you refer to is called a capacitor. Literally the first sentence on the Wikipedia page for capacitor is: A capacitor is a device that stores electrical energy in an electric field. Search 302324Y and see it’s called a capacitor not just by this site. You should email Casio and Seiko to complain. https://www.google.com/search?&q=watch+capacitor

jalind
Member
3 years ago
Reply to  Yurri

When you’ve got a graduate degree in electronics and electrical engineering from a top ten university engineering graduate school, in addition to the highest class of FCC license requiring extensive knowledge about circuit design, the active and passive components used, their principles of operation and how they’re fabricated and constructed internally, THEN come back and DARE to lecture me about what a battery and a capacitor are. These watch movements use rechargeable BATTERIES. Period. They are NOT capacitors. I personally do not care what specious, erroneous and technically wrong stuff you found on the Internet that claims they are (It… Read more »

Derek Covey
Derek Covey
3 years ago
Reply to  John Lind

2021 Nobel Prize then
Top of the class, but still cannot manage anger, such a waste of “talent”

Robert Smith
Robert Smith
3 years ago
Reply to  John Lind

No one cares what who you went to, what degree you have or where the certificate you have ranks among certificate in general. Your uppity “I’m smarter and better than you” attitude is what is like fingernails on a blackboard in this whole situation. Nothing else. A$$hole.

jalind
Member
3 years ago
Reply to  Robert Smith

When all else fails, launch ad hominem attack calling someone an A$$hole – the last resort of those who have no valid argument.

Pippin McGrath
Pippin McGrath
3 years ago
Reply to  John

Thing is John, with the way you carry on, he’s right and deep down you know it.

Andy
Andy
2 years ago
Reply to  John

It’s not an ad hom, it’s just an insult.

Tiberious
Tiberious
2 years ago
Reply to  Robert Smith

Well said

DH_3_5
DH_3_5
2 years ago
Reply to  John Lind

I believe learning to write proper English should be a requirement to earning a graduate degree. Don’t you agree, Mr. “When you GOT a graduate degree…”

Rene
Rene
1 year ago
Reply to  John Lind

You’re right. They don’t want to use the word “battery” for rechargeable battery because these watches are “eco friendly “ so they don’t use batteries, but they use a “capacitor”. I always thought the same thing, it’s a recharge able battery like a Tesla

jalind
Member
3 years ago
Reply to  Yurri

This V157 movement uses a Panasonic MT920 rechargeable Lithium BATTERY with a specific set of contacts welded to it for use in the V157 movement. This is the most common rechargeable BATTERY used in kinetic and solar watch movements. Variants are made with the MT920 with different shape contacts welded to them to make contact with electrical pads on circuit boards in specific movements.
https://industrial.panasonic.com/ww/products/batteries/secondary-batteries/coin_rechargeable_lithium/models/MT920
There’s no such thing as a “rechargeable Lithium capacitor”. Doesn’t exist. Never has.

Sam McClaren
Sam McClaren
3 years ago
Reply to  Yurri

Thanks for sharing your intelligence. I could do without the blackboard.

markdal
markdal
3 years ago
Reply to  John Lind

A ‘battery’ is a series of cells ( or guns). A ‘cell’ in this context stores electrical energy for an indeterminate period time, be that short bursts like a capacitor ( wallop if you touch one! lol), or loooonger like a lithium ion or whatever you like.

DragonSG
DragonSG
7 months ago
Reply to  John Lind

EEE engineer here. Technology is evolving. Knowledge is power. If you do not know, just admit you do not know. Even having a Harvard PhD in Electronics does not guarantee you know everything about batteries or the whole universe. Be humble. most importantly, do not be a clown. It’s a relatively newer technology as a form of hybrid capacitive battery as stated here: https://www.mdpi.com/1996-1073/15/19/7276 (Lithiated Manganese-Based Materials for Lithium-Ion Capacitor: A Review) A manganese titanium-lithium rechargeable capacitor, also known as an MTLC capacitor, is a type of energy storage device that combines features of both capacitors and batteries. It offers… Read more »

trackback
Seiko Caliber V158 Watch Movement | Caliber Corner
3 years ago

[…] is a similar Seiko caliber V157, with the main difference being that the V157 only has a date window at 3:00, and the V158 has a […]

Johnny
Johnny
3 years ago

I love my V157 Divers watch. My question is I want to change the original rubber band with an bracelet type. Not sure what size to look for.

Kevin D Moakley
Kevin D Moakley
3 years ago
Reply to  Johnny

I recently purchased a Seiko Prospex SNE541 and it has 22mm width lugs. I put it on an ‘engineer’ style bracelet because I have problems with rubber-style straps against my wrist ( a fairly costly ISO-frane strap or a stock latex band will give me a rash and swelling). Such ‘engineer’ bands can be found from numerous sources on the web for around $40. I got mine from a reputable seller on the dreaded eBay and I’m happy to report that it has comfort and gives the watch a completely different look that appeals to me. The bracelet even came… Read more »

16192661839413145677263245475906.jpg
PiratePete
PiratePete
3 years ago

That looks awesome

Kevin D Moakley
Kevin D Moakley
3 years ago
Reply to  PiratePete

Thank you very much!

trackback
Seiko Prospex Solar Diver SNE435 PADI Review - FIFTH WRIST
3 years ago

[…] screw down case back with the cool Seiko wave etching proving that it’s a 200m Diver. A Seiko Caliber V157 solar powered quartz movement with a 10 month power reserve keeps the watch running and […]

David Corango
David Corango
2 years ago

Sne566p1, running at +/-0 per day for the past 7 months.

moffet1
moffet1
2 years ago

whether you like or dislike John Linds input is irrelevant. He is 100% correct. It is a battery. A spade is a spade, a shovel is a shovel, a capacitor is a capacitor and a battery is just that, a battery.

David
David
1 year ago
Reply to  moffet1

Right, and a pedantic troll is a pedantic troll.

izy001
izy001
1 year ago

Could you please do a data sheet for the Seiko Calibre V147?

Thank you

Tammy Sharon Loretta Stafford
Tammy Sharon Loretta Stafford
11 months ago

So many heated confabulations over the word capacitor!Sheesh! As long as it works,right?I mean,Come ON!

Nicholas
Nicholas
2 months ago

What is the Caliber number when Seiko/Epson sells it to other watch companies? I pre-ordered the momentum solar sea quartz 30 with the vs42 movement. I think it’s the same movement. Just curious if anyone knows?Thanks

Seagull Caliber St19

Join our mission to spread movement awareness!

Members Online

  • admin

Recent Forum Posts

Trending Comments

Hans Groenewegen
2

Orient Caliber F6922

I've had my Mako and Ray Orient watches with these calibers, I guess. Their performance…


1

Seiko Instruments (SII) Caliber VH31

the VH-31 movement coupled with solar or kinetic in a Seiko watch would sell like…


Pyral
1

Miyota/Citizen Caliber 9051

I have the 9051 in my Fujitsubo, it appears to be within 3 seconds. I'll…


1

ETA Caliber F06.115

Why not (3 Jewels) but at 20 to 30$ replacement Cost it will probably rather…


1

ETA/Valjoux Caliber 7753

Tissot Moto GP 2024 Limited edition


Sponsors

30
0
Would love your thoughts, please comment.x
()
x