Seiko Cal. 6642 - 627

This Spring Drive model from 1972 features a 46mm Titanium case. Powered by the 6642 caliber with 28j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-2f7c1d5a3538]

Also known as: Bullhead, Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1972

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