Seiko Cal. 5640 - 259

This Solar model from 1976 features a 43mm Hardlex-Coated Steel case. Powered by the 5640 caliber with 27j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-cc262d3a839e]

Also known as: Helmet, Arnie

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1976

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