Seiko Cal. 6389 - 870

This Quartz model from 1968 features a 42mm Stainless Steel case. Powered by the 6389 caliber with 33j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-4ff2d4c6d620]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1968

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