Seiko Cal. 6143 - 170

This Spring Drive model from 1983 features a 40mm Stainless Steel case. Powered by the 6143 caliber with 20j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-6aaaf9b29bf2]

Also known as: Monster, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1983

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