Brand | Soprod |
Caliber Number | C125 |
Base Caliber |
Soprod A10-2/M100 |
Movement Type | Automatic, self-winding mechanical |
Lignes | 11.5”’ |
Diameter |
25.60mm |
Height | 4.10mm |
Jewels |
25 |
Power Reserve | ~42 hours |
Vibrations Per Hour | 28,800 bph, 4Hz |
Anti-Shock System | Incabloc |
Winding Direction | Bidirectional |
Hand-Winding? |
Yes |
Features | Central hours; central minutes; central sweeping seconds; independent central GMT hand; date |
Hacking Seconds? | Yes |
Country of Manufacture | Switzerland, Swiss made |
Known Models | Oak and Oscar Sandford, Hager GMT Traveler, Mercer Goods Nomad GMT, Serica 8315 GMT Chronometre, Zodiac Sea Wolf GMT World Time Automatic (Add your watch to the comments below…) |
The Soprod caliber C125 automatic GMT movement. It is Swiss made with 25 jewels and a run time of about 42 hours on a full wind. This caliber is based on the Soprod A10-2 (now known as the M100), with a GMT module. Soprod is a division of the Festina group.
Caliber Commentary:
According to John who submitted this movement, he says:
Difficult to find a lot of information on it. Oak & Oscar claims to be the sole user of the movement, and it could very well be true.
He also mentioned that the caliber C125 may have been based on the Soprod C105 or developed with Seiko 4L. If you have more information on this, please let the community know below.
When asked about the quality of this movement for daily wear, mrvarmint on Reddit says this:
Roughly equivalent to ETA 2893-2, exact same size, so it will be the ebauche found in a lot of formerly-ETA-supplied budget GMTs. Has a few extra jewels, not sure where though.
Function, fortunately or unfortunately, is the same as ETA 2893-2 with quick-set 24H hand rather than quick-set local time (as on a “true” GMT), because the GMT module is built on what would be the day module.
No complaints of Soprod, some anecdotal advantages in the manual winding works, biggest concern is that they’re relatively untested, but I wouldn’t be opposed to buying one for myself
Gallery:
The C125 example pictured above and below is from an Oak and Oscar Sandford watch.
Additional Resources:
- View the manufacturer’s site at: soprod.com
- Read more: Soprod official caliber C125 tech sheets
Caliber submited by John Massi
Trending Comments
Sellita Caliber SW200 VS SW200-1
Wow man, you should join the R0l3X club, they're desperately looking for new members, but…
Sellita Caliber SW200 VS SW200-1
Basically you are saying that one of the world's most used workhorse movements is complete…
ETA Caliber C07.XXX
I can confirm that the escape wheel from a standard 2824-2 movement is NOT interchangeable…
Seagull Caliber ST1902
I assembled Speedmaster homage with that movement a couple weeks ago and tonight I am…
TAG Heuer Caliber TH20-00
How's that accuracy holding up now? Going to pick up my Reverse Panda next month,…
Active Caliber Listings
Tengo un mondaine big date que al cambiarle la baterĂa dejo de funcionar la verdad…
Hi Joe, sounds like they were just back-ratcheting while manually winding. As for the rotor,…
"The rotor winds in both directions to reduce winding time." I've seen a video showcasing…
I looked at a 2007-2009 M832118 When I went to set the time clockwise rotation…
How's that accuracy holding up now? Going to pick up my Reverse Panda next month,…