Seiko Cal. 4443 - 845

This Spring Drive model from 1978 features a 37mm Hardlex-Coated Steel case. Powered by the 4443 caliber with 22j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-4f92a2ade792]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1978

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