Seiko Cal. 7143 - 611

This Hand-Winding model from 1978 features a 37mm PVD Black case. Powered by the 7143 caliber with 17j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-cf365ae18d47]

Also known as: Turtle, Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1978

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