Seiko Cal. 7056 - 230

This Spring Drive model from 1997 features a 37mm Hardlex-Coated Steel case. Powered by the 7056 caliber with 21j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-8caf1de7b12f]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1997

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