Seiko Cal. 6638 - 516

Seiko 6638-516

This Automatic model from 1971 features a 42mm Hardlex-Coated Steel case. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-f4bee5b3a333]

Also known as: Shogun

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Silver
Jewels
30j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1971

Related Models

seikata-wm-f4bee5b3a333