Seiko Cal. 6637 - 481

Seiko 6637-481

This Spring Drive model from 1976 features a 36mm Hardlex-Coated Steel case. The Fixed bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-d105a5ebe49e]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
11.3mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
90m
Dial Color
Cream
Jewels
36j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1976

Related Models

seikata-wm-d105a5ebe49e