Ronda Caliber 4120 B

Ronda Caliber 4120.B

Ronda Caliber 4120 B

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
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.



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