Seiko Cal. 0747 - 300

This Hand-Winding model from 1968 features a 34mm Hardlex-Coated Steel case. Powered by the 0747 caliber with 30j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-827b9816d52f]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1968

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