Seiko Cal. 4550 - 422

Seiko 4550-422

The 4550-422 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-bc92c7f2c6e2]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
9.4mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Navy
Jewels
23j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1968

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