Seiko Cal. 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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