| Brand | Ronda |
| Caliber Number | Ronda 4120.B |
| Type | Quartz |
| Size | 12 1/2”’ x 4.40mm thick |
| Diameter | 28.60mm |
| Jewels | 7 or 3 |
| Battery Cell Number | 395 |
| Claimed Battery Life | 50 months |
| Hands | .20 x .90 x .150 |
| Stem | S401-2025 |
| Hacking | Yes |
| Functions | Hours, minutes, small seconds, alarm, big date |
| Country |
Swiss parts, assembled in unknown (comment below) |
| Known Models |
Invicta Russian Diver III |
According to the Ronda website, there are two versions of this caliber 4120.B quartz movement: a Swiss parts version with 3 jewels and nickel plated finish, and a Swiss Made 7 jewel version with gold plated finish (above). It also has a power saving mechanism with pulled out stem: Reduction of consumption approximately 70%.
Ronda states that this is a repairable metal watch movement, however, if you need to replace it the prices online range from $48.95 (Swiss parts) to $66.95 (Swiss made) at the time of this post.
network of watch sites
