Seiko Cal. 5660 - 225

This Solar model from 1971 features a 40mm Titanium case. Powered by the 5660 caliber with 35j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-81a13eeb8bb1]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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