Seiko Cal. 4421 - 646

Seiko 4421-646

This Solar model from 1967 features a 35mm PVD Black case. Powered by the 4421 caliber with 19j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-618ed6a5a112]

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
35mm
Case Thickness
8.1mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Silver
Jewels
19j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1967

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seikata-wm-618ed6a5a112