Seiko Cal. 4490 - 731

Seiko 4490-731

The 4490-731 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-5b4f3e30cfd3]

Also known as: Crown

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
14.1mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Navy
Jewels
23j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1985

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