Seiko Cal. 4421 - 903

Seiko 4421-903

The 4421-903 is a sought-after Kinetic piece from Seiko's golden era. With its 22mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-aea4280e80cf]

Also known as: Emperor

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
40mm
Case Thickness
11.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Silver
Jewels
17j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1974

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