Seiko Cal. 6131 - 694

The 6131-694 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6131 caliber with 26j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-e007cbe0ca8f]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

26j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1979

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