Seiko Cal. 0743 - 683

This Spring Drive model from 1971 features a 42mm PVD Black case. Powered by the 0743 caliber with 28j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-aa4836811ad7]

Also known as: Sumo, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

28j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1971

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