Seiko Cal. 6636 - 381

Seiko 6636-381

This Hand-Winding model from 1981 features a 35mm Hardlex-Coated Steel case. With its 18mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-b2a6858c4738]

Also known as: Monster, Sea Horse

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
15.8mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
White
Jewels
26j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1981

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seikata-wm-b2a6858c4738