Seiko Cal. 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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