Seiko Cal. 5631 - 338

Seiko 5631-338

This Kinetic model from 1987 features a 37mm PVD Black case. Powered by the 5631 caliber with 33j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-7c3d3122b73a]

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
37mm
Case Thickness
8.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
140m
Dial Color
Cream
Jewels
33j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1987

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seikata-wm-7c3d3122b73a