Seiko Cal. 6637 - 146

Seiko 6637-146

This Solar model from 1967 features a 42mm Hardlex-Coated Steel case. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-d2ee46542355]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
10.6mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Champagne
Jewels
21j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1967

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