Seiko Cal. 4480 - 987

Seiko 4480-987

The 4480-987 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4480 caliber with 29j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-2f8a5cffc492]

Also known as: Bullhead, Helmet

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
13.8mm
Lug Width
22mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
29j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1998

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seikata-wm-2f8a5cffc492