Seiko Cal. 6661 - 136

This Solar model from 1972 features a 40mm Hardlex-Coated Steel case. Powered by the 6661 caliber with 26j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-dd16c41a6df3]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1972

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