Seiko Cal. 6637 - 781

Seiko 6637-781

This Automatic model from 1978 features a 34mm Titanium case. With its 20mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-4131ee125558]

Also known as: Shogun

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
34mm
Case Thickness
12.1mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
120m
Dial Color
Navy
Jewels
18j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1978

Related Models

seikata-wm-4131ee125558