Seiko Cal. 3854 - 631

Seiko 3854-631

This Hand-Winding model from 1973 features a 45mm Two-Tone case. Powered by the 3854 caliber with 21j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-e5f3ba872302]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
45mm
Case Thickness
10.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
40m
Dial Color
White
Jewels
21j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1973

Related Models

seikata-wm-e5f3ba872302