Seiko Cal. 4490 - 641

Seiko 4490-641

The 4490-641 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-d3ed10089306]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
13.9mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
110m
Dial Color
White
Jewels
36j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1975

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