Seiko Cal. 5256 - 287

The Seiko 5256-287 represents an important milestone in Seiko's 1990 lineup. Powered by the 5256 caliber with 25j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-4670ad9bf276]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1990

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