Seiko Cal. 6638 - 177

Seiko 6638-177

This Quartz model from 1976 features a 41mm PVD Black case. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-b9a8498dcd5e]

Also known as: UFO, Goldfeather

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
41mm
Case Thickness
15.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Burgundy
Jewels
23j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1976

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