Seiko Cal. 4427 - 329

Seiko 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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