Seiko Cal. 4420 - 781

Seiko 4420-781

This Solar model from 1974 features a 41mm Gold-Plated case. Powered by the 4420 caliber with 26j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-3ad7e9237f2b]

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
140m
Dial Color
Navy
Jewels
26j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1974

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