Seiko Cal. 6638 - 457

Seiko 6638-457

This Hand-Winding model from 1970 features a 36mm Gold-Plated case. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-3608c94969e9]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
15.5mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1970

Related Models

seikata-wm-3608c94969e9