Seiko Cal. 3891 - 640

Seiko 3891-640

This Hand-Winding model from 1978 features a 34mm Stainless Steel case. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-388c5a343c06]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
12.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
130m
Dial Color
Burgundy
Jewels
27j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1978

Related Models

seikata-wm-388c5a343c06