Seiko Cal. 4487 - 775

The 4487-775 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4487 caliber with 19j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-102d9c06116e]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1986

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