The caliber 6R35 is one of Seiko’s high-performance workhouse movements, found in many of the Prospex and Presage timepieces. Finishing is industrial and everything has been manufactured by automated machines. Accuracy is not great compared to Swiss mechanical movements, however, this is one of the better Seiko mechanical movements.

Caliber: 6R35

Release Date: 2019

Country: Japanese made

Type: Automatic

Dimensions: 27.4 mm/5.25 mm

Total Components:

Jewels: 24

Oscillating Frequency: 3Hz (21,600 VPH)

Power Reserve: 70 hours

Functions: Hours, minutes, center seconds, date

Balance Wheel: Index regulator

Rotor: bi-directional winding

Finishing: Basic machined, stripes on rotor

Unique Features: Spron 510 mainspring, ETAChrono regulation, Diashock, hand winding, hacking

Lift Angle: 53 degrees

Factory Rate: -15/+25 seconds per day

Variations: 6R35, 6R35A, 6R35B, 6R35C