Seiko Cal. 4437 - 395

This Spring Drive model from 1979 features a 43mm Gold-Plated case. Powered by the 4437 caliber with 21j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-029adc0a49c3]

Also known as: Pogue, Navigator

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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