Seiko Cal. 4424 - 288

Seiko 4424-288

The 4424-288 is a sought-after Solar piece from Seiko's golden era. Powered by the 4424 caliber with 26j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-672d5b9a72e6]

Also known as: Sumo, Helmet

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
10.2mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Black
Jewels
26j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1965

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