Seiko Cal. 6634 - 388

Seiko 6634-388

This Quartz model from 1978 features a 34mm Two-Tone case. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-8d50d62dda92]

Also known as: Shogun, World Timer

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
34mm
Case Thickness
8.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Black
Jewels
33j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1978

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