Seiko Cal. 5637 - 897

Seiko 5637-897

This Automatic model from 1969 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-e4f0f4ba11f6]

Also known as: World Timer, Sea Horse

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
9.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
110m
Dial Color
White
Jewels
21j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1969

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