Seiko Cal. 6637 - 490

Seiko 6637-490

This Kinetic model from 1975 features a 45mm Titanium case. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-c40cd79d263d]

Also known as: Bullhead, Bellmatic

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
45mm
Case Thickness
13.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
180m
Dial Color
Cream
Jewels
23j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1975

Related Models

seikata-wm-c40cd79d263d