Seiko Cal. 4490 - 284

Seiko 4490-284

The 4490-284 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4490 caliber with 32j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-c79117d9ed8e]

Also known as: Sumo, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
11.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Blue Sunburst
Jewels
32j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1993

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seikata-wm-c79117d9ed8e