Seiko Cal. 4423 - 522

Seiko 4423-522

The 4423-522 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4423 caliber with 25j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-289072145f66]

Also known as: Helmet, Golden Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
38mm
Case Thickness
13.1mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
21,600 bph
Power Reserve
51 hours
Year
1979

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