Seiko Cal. 6688 - 136

This Quartz model from 1974 features a 43mm Stainless Steel case. Powered by the 6688 caliber with 29j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-a36b2e1cca0f]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1974

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