Seiko Cal. 3831 - 491

Seiko 3831-491

This Hand-Winding model from 1988 features a 35mm Hardlex-Coated Steel case. Powered by the 3831 caliber with 25j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-d93e3d722967]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
8.4mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
150m
Dial Color
Black
Jewels
25j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1988

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seikata-wm-d93e3d722967