Seiko Cal. 4427 - 329

This Solar model from 1977 features a 39mm Stainless Steel case. Powered by the 4427 caliber with 18j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-9909ef1f1b04]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1977

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