Seiko Cal. 6639 - 852

Seiko 6639-852

This Quartz model from 1970 features a 34mm Hardlex-Coated Steel case. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-037cd886d1ed]

Also known as: UFO, Silverwave

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
13.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
170m
Dial Color
Cream
Jewels
28j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1970

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