Seiko Cal. 6639 - 518

Seiko 6639-518

This Quartz model from 1992 features a 40mm Two-Tone case. With its 18mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-1ba9f080a606]

Also known as: Monster, Silverwave

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
40mm
Case Thickness
9.3mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
200m
Dial Color
Green
Jewels
34j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1992

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seikata-wm-1ba9f080a606