Seiko Cal. 5637 - 966

Seiko 5637-966

This Hand-Winding model from 1980 features a 35mm Gold-Plated case. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-0a222b97b985]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
140m
Dial Color
Silver
Jewels
22j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1980

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seikata-wm-0a222b97b985