Seiko Cal. 6636 - 692

Seiko 6636-692

The 6636-692 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6636 caliber with 29j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-d4dcb6ab6bf1]

Also known as: Bullhead, Flighty

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
38mm
Case Thickness
10.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
50m
Dial Color
White
Jewels
29j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1980

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