Seiko Cal. 6639 - 471

Seiko 6639-471

This Hand-Winding model from 1978 features a 41mm Hardlex-Coated Steel case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-68d4eecf6d4d]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
8.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
160m
Dial Color
Cream
Jewels
18j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1978

Related Models

seikata-wm-68d4eecf6d4d