Seiko Cal. 4431 - 412

This Solar model from 1967 features a 37mm Stainless Steel case. Powered by the 4431 caliber with 24j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-5ad05098ba9e]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1967

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