| Module Maker | Dubois Dépraz |
| Module | 2025, 2025M, DD-2025 |
| Base Caliber | ETA 2824-2 |
| Movement Type | Automatic, self-winding mechanical, chronograph |
| Diameter | 30mm |
| Height | 6.1mm |
| Jewels | 51 (25 jewels on the 2824-2 + 26 jewels on the module) |
| Beat Rate / Frequency | 28,800 bph / 4Hz |
| Lift Angle | Unconfirmed |
| Power Reserve | ~36 hours |
| Rotor Style | Ball Bearing |
| Hand-Windable? | Yes |
| Anti-Shock Device | Incabloc |
| Hand Count | 6 |
| Functions | Central hours; central minutes; central chronograph seconds; small running seconds subdial at 3:00; 30 minutes chronograph counter at 9:00; 12 hours chronograph counter at 6:00; date at 12:00 |
| Chronograph Layout | 3-6-9 |
| Hacking Seconds? | Yes |
| Country of Manufacture | Switzerland, Swiss made |
| Known Models | Zodiac Calame Chronograph (Ref: ZO-2003) (Add your watch to the comments below…) |
The Dubois-Depraz 2025 is a module that turns the basic 3-hander ETA 2824-2 into a tri-compax chronograph with a date complication. This module is found on the Zodiac Calame watches introduced in 2003, named after the brand’s founder.
If you see an “M” on 2025, it usually stands for “module”.
The 2025M increases the movement jewel count from 25 on the plain Jane ETA 2824-2 to 51 jewels with the DD-2025 module.
There are many DD modules and generally not a lot of information or technical details about them. Don’t be surprised if you see the 2025 being incorrectly described as a module for the ETA 2892A2.
Additional Resources:
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