Seiko Cal. 6638 - 816

Seiko 6638-816

This Hand-Winding model from 1978 features a 43mm Hardlex-Coated Steel case. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-34c16e6b99c0]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
13.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1978

Related Models

seikata-wm-34c16e6b99c0