Seiko Cal. 4422 - 448

Seiko 4422-448

This Quartz model from 1970 features a 43mm PVD Black case. Powered by the 4422 caliber with 21j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-95b48244a4ed]

Also known as: Sumo, Arnie

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
43mm
Case Thickness
14.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Blue Sunburst
Jewels
21j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1970

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