Seiko Cal. 6681 - 712

This Automatic model from 1975 features a 43mm Two-Tone case. Powered by the 6681 caliber with 26j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-13d4c95dfec2]

Also known as: Monster, Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1975

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