Eta Tissot C15 111

ETA Caliber C15.111

Eta Caliber C15 111

ManufacturerETA
Caliber NumberC15.111
Base CaliberSistem 51 (ETA C10.111)
Diameter14 1/4”’ (33mm)
Thickness5.77mm
Vibrations Per Hour21,600 bph 3Hz
Power Reserve72+ hours
Jewels19
Anti-ShockNivachoc
Barrel SpringNivaflex
Hacking CrownNo
Hand-Windable?Yes
FunctionsHours, minutes, central seconds, date
Country of ManufactureSwitzerland
Known Models
Tissot Gentleman Swissmatic, Tissot Everytime Swissmatic

The ETA caliber C15.111 automatic movement is made specifically for the Tissot Everytime Swissmatic and Gentleman Swissmatic lines (at least at the time of this post).

Sistem51 Roots

This movement is derived from the System51 robot-made movement in the Swatch Sistem51 watch. In addition to being machine-made, this movement is considered non-serviceable aka disposable. That means, it’s likely that Tissot (Swatch Group) is going to install an entirely new movement for each service instance, rather than replace necessary parts and oil, etc.

About serviceability, Deli on WUS says:

“No service on the movement AT ALL, whether it’s from a tissot watch or a swatch one. No rotor replacement, nor any regulation. The set spiral length is laser-cut, and the metallic balance is poised. You can’t adjust the rate, or add/remove mass on the balance. Tissot case parts (gaskets, sapphire, crown, etc) are serviceable though, in a classic way.” –post

In reference to the synthetic parts used, Tom-HK said:

“So the balance / escapement set-up is probably lifted straight from the Sistem51. Synthetic parts abound, but still a metal balance spring. Similar accuracy spec, too. Well, I hadn’t really expected a silicon balance spring at this price point, I suppose. Tissot need to be a bit wary of mentioning the ‘synthetic escapement’ bit (not that I have seen it prominently in any of their marketing for this model, to date), lest they inadvertently lead people to the wrong conclusion.” –post

From wornandwound:

“While the movement used in the Tissot Swissmatic is an adaptation of the Sistem51, brand representatives for Tissot explain that the current iteration was designed exclusively for Tissot. In this configuration, the mechanical automatic movement has a three-day power reserve. The components of the movement are manufactured and assembled by modules and soldered in Boncourt, Switzerland.” –source

Some watches with this caliber:

Extra Photos:

Eta Tissot C15

Eta Tissot C15 111

Let us know about your experience with the ETA caliber C15.111 Swissmatic movement below…

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Dan Finch
Dan Finch
2 years ago

I like my Tissot Gentleman for the money. It looks kind of like a budget Montblanc Timewalker! The movement is fairly accurate, I’m getting about -6 sec./day out of the box. Even though it says, “Swiss Made” on the outside, when I popped the case open I found “Tissot Hong Kong” stamped inside the rear bezel! Same thing with my Mido. I guess that’s how Swatch saves money on their lower end brands.

Xavier
Xavier
2 years ago
Reply to  Dan Finch

That is disappointing. I guess Swiss Made doesn’t mean much anymore.

Dan Finch
Dan Finch
2 years ago
Reply to  Xavier

You have to go up to the Longines level to get Swiss cases and mostly Swiss parts from the Swatch group.

dannyberrot
dannyberrot
1 year ago
Reply to  Xavier

….muchas marcas famosas hacen lo mismo, es cuestión de mercado y sobre todo de bajar los costes ..es la única manera de poder ofrecer buena calidad y continuar en el mercado con precios asequibles para la gente en el segmento joven contemporáneo …lo importante es que el control de calidad sea optimo,y lo es….la apuesta del grupo Swatch por calibres hechos por robots y calibrados con equipos de ultima tegnologia en fabrica es extraordinario, es… Read more »

Steven
Steven
2 years ago

Is this caliber hand-windable?

Steven
Steven
2 years ago
Reply to  Caliber Corner

Thanks for the reply! Much appreciated. Winding anti-clockwise is a bit counter-intuitive…

rafsin
rafsin
2 years ago

well, i bought tissot v8 ref. T106.407.16.051.00 that uses this movement and I am fairly happy – it looks great and wears too, is 100m waterproof with date window. Still no one can except a good movement at this price.

David Johnson
David Johnson
2 years ago

For $268USD at .com it is a fairly good deal. I do like the look and feel of the TISSOT GENTLEMAN SWISSMATIC T098.407.36.052.01 which is one of my new acquisitions. If you pull the crown to set the time and move it slightly clockwise and counter clockwise, there is a bit of slop in the hands and the lack of hacking is disappointing. Otherwise just set it and forget it. The rose gold and Brown… Read more »

watchhans
watchhans
2 years ago
Reply to  David Johnson

That´s exactly what I don´t like with this movement. In order to properly align the hands, I always have to turn them one minute ahead.
You can stop the movement by fully pulling the crown and very slightly turn it anti-clockwise until it stops. Then just release the crown on the second and set the correct time. It´s a little fiddly, but it works.

watchhans
watchhans
2 years ago

After the Swatch Group introduced the Sistem51 it was just a matter of time until this movement found it´s way to their lower brand Tissot. And I fear this is not the end. Who is next? Certina? Or even Longines? Probably there will be more models made by Tissot using this calibre. When it comes to easily making money, the Swatch Group will be first in line. Technically, this movement might be quite interesting and… Read more »

Robert
Robert
2 years ago

As long as we are ok with robot made mechanical watches then why not just wear quartz? The reason I like mechanical watches is knowing someone put it together by hand.

Evan Setiawan
Evan Setiawan
1 year ago
Reply to  Robert

Hai, is it okay to put swissmatic to watchwinder? I have tissot V8 swissmatic

watchhans
watchhans
1 year ago
Reply to  Evan Setiawan

It is o k. But keep in mind that it is a unidirectional automatic, it only winds in clockwise direction.

Makis Theodoridis
Makis Theodoridis
1 year ago

Hi, I recently bought a Tissot V8 and I would like to know if there will be any damage to the mechanism if I hand wind it the wrong way

watchhans
watchhans
1 year ago

No.
There is a so-called Breguet-ratchet wheel that prevents damage to the movement when you wind it the wrong way.

Makis theidoridis
Makis theidoridis
1 year ago
Reply to  watchhans

Thanks

David Feng
David Feng
1 year ago

Hi everyone..i just got a Tissot t race swiss automatic watch, model#T1154071704100..it has the same movement ETA C15.111…it is windble on the counter clockwise (i didn’t sure about that until i saw this article)..and my only concern now is: when i set time,as it hasn’t hacking crown,the second hand doesn’t stop,but when i slightly turned counter clockwise to set it,the second hand just bounded a little.is that normal for this movement? Is the watch damaged?… Read more »

Hans
Hans
1 year ago
Reply to  David Feng

Hi David! It is normal with any mechanical watch without a hacking function. If you slightly (very slightly!) turn the crown counter clockwise, you actually block the gear train of the movement via the cannon pinion. This cannon pinion is attached to the minute wheel of the movement via friction. This friction allows to set the hands. What happens when you SLIGHTLY turn or just hold the crown counter clockwise, you use this friction to… Read more »

David Feng
David Feng
1 year ago
Reply to  Hans

Thank you so much Hans!!now I am peace of mind!

Erick Catalan
Erick Catalan
9 months ago

Non-serviceable movement = quartz movement.
Not collectable. Bad idea tissot…

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