Seiko Cal. 0722 - 424

Seiko 0722-424

The 0722-424 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0722 caliber with 27j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-97ee02517a92]

Also known as: Helmet, Silverwave

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
45mm
Case Thickness
13.3mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
160m
Dial Color
Silver
Jewels
27j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1975

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