Seiko Cal. 6636 - 769

Seiko 6636-769

The Seiko 6636-769 represents an important milestone in Seiko's 1992 lineup. With its 21mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-dd5f26a2ccaa]

Also known as: Bullhead

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
9.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Silver
Jewels
34j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1992

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