Seiko Cal. 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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