Seiko Cal. 6656 - 410

This Solar model from 1988 features a 37mm Hardlex-Coated Steel case. Powered by the 6656 caliber with 24j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-b90f6ef10bd9]

Also known as: Tuna, Bellmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1988

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