Seiko Cal. 6230 - 637

This Quartz model from 1988 features a 40mm Hardlex-Coated Steel case. Powered by the 6230 caliber with 30j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-cdbd4c2ce1b6]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1988

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