Seiko Cal. 6143 - 334

This Spring Drive model from 1971 features a 44mm PVD Black case. Powered by the 6143 caliber with 18j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-40232062a9ee]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1971

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