Seiko Cal. 7030 - 512

This Hand-Winding model from 1978 features a 37mm Hardlex-Coated Steel case. Powered by the 7030 caliber with 22j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-cea7d641374b]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1978

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