Seiko Cal. 6636 - 985

Seiko 6636-985

This Spring Drive model from 1968 features a 37mm Titanium case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ada1906d5421]

Also known as: Monster, Silverwave

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
37mm
Case Thickness
11.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
50m
Dial Color
Cream
Jewels
23j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1968

Related Models

seikata-wm-ada1906d5421