Seiko Cal. 5638 - 767

Seiko 5638-767

This Quartz model from 1978 features a 38mm Titanium case. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-6c1082da9512]

Also known as: Helmet, Silverwave

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
38mm
Case Thickness
8.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
40m
Dial Color
Navy
Jewels
22j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1978

Related Models

seikata-wm-6c1082da9512