Seiko Cal. 5657 - 587

The 5657-587 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5657 caliber with 19j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-e9b0a2c655d2]

Also known as: Bullhead, World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1976

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