Seiko Cal. 4427 - 844

Seiko 4427-844

This Hand-Winding model from 1974 features a 43mm Hardlex-Coated Steel case. Powered by the 4427 caliber with 35j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-4e8941af9a29]

Also known as: Sumo, Pogue

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
10.9mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Cream
Jewels
35j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1974

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