Seiko Cal. 4480 - 661

The 4480-661 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4480 caliber with 17j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-68269ff85218]

Also known as: Sumo, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1992

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