Seiko Cal. 5687 - 431

This Solar model from 1994 features a 40mm Hardlex-Coated Steel case. Powered by the 5687 caliber with 36j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-2638cfb46f90]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1994

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