Seiko Cal. 4423 - 632

Seiko 4423-632

The 4423-632 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4423 caliber with 27j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-d9b0153bba36]

Also known as: Shogun, UFO

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
37mm
Case Thickness
15.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
50m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1981

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