Seiko Cal. 4487 - 722

The 4487-722 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4487 caliber with 26j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-43e448cb4910]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1970

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