Seiko Cal. 4480 - 646

Seiko 4480-646

The 4480-646 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4480 caliber with 17j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-0134b87d1b4e]

Also known as: Sumo, Flighty

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
15.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Green
Jewels
17j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1992

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seikata-wm-0134b87d1b4e