Seiko Cal. 4556 - 987

The Seiko 4556-987 represents an important milestone in Seiko's 1988 lineup. Powered by the 4556 caliber with 18j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-e642601d67fa]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1988

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