Seiko Cal. 6638 - 555

Seiko 6638-555

This Quartz model from 1976 features a 35mm PVD Black case. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-9be5f7a83379]

Also known as: Crown

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
35mm
Case Thickness
15.8mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Blue Sunburst
Jewels
17j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1976

Related Models

seikata-wm-9be5f7a83379