Seiko 4R35
Seiko Instruments (SII)
Seiko's mid-range automatic caliber, widely used in the Presage and some Prospex lines. Features hacking and hand-winding at an accessible price point. Accuracy spec is -35/+45 seconds per day, though most examples perform well within that range.
21,600
vph (3.0Hz)
41h
Power Reserve
23
Jewels
27.4mm
Ø × 5.32mm
Hacking: Yes
Hand-winding: Yes
Watches using this caliber (0)
No watches in the database currently use this caliber.