Seiko Cal. 4423 - 737

This Spring Drive model from 1980 features a 38mm Stainless Steel case. Powered by the 4423 caliber with 27j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-a69e291030e8]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1980

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