Seiko Cal. 6636 - 954

Seiko 6636-954

This Automatic model from 1970 features a 44mm Hardlex-Coated Steel case. With its 20mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-3ecb19826e78]

Also known as: Crown

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
12.8mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
150m
Dial Color
White
Jewels
27j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1970

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seikata-wm-3ecb19826e78