Seiko Cal. 5656 - 287

The Seiko 5656-287 represents an important milestone in Seiko's 1992 lineup. Powered by the 5656 caliber with 27j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-ebba70c34d84]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1992

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