Seiko Cal. 3891 - 627

Seiko 3891-627

This Automatic model from 1976 features a 37mm Stainless Steel case. Powered by the 3891 caliber with 31j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-770a6950b0d4]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
14.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
60m
Dial Color
Burgundy
Jewels
31j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1976

Related Models

seikata-wm-770a6950b0d4