Seiko Cal. 6637 - 953

Seiko 6637-953

This Automatic model from 1982 features a 40mm Hardlex-Coated Steel case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-04a78eefce19]

Also known as: Bullhead, Bellmatic

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
12.6mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Silver
Jewels
36j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1982

Related Models

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