Seiko Cal. 4590 - 937

The 4590-937 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4590 caliber with 28j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-ed50f637dfdb]

Also known as: Bullhead, Emperor

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1990

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