Seiko Cal. 6684 - 888

This Spring Drive model from 1980 features a 34mm Hardlex-Coated Steel case. Powered by the 6684 caliber with 20j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-6660b8ab5fe5]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1980

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