Seiko Cal. 5687 - 266

The Seiko 5687-266 represents an important milestone in Seiko's 1979 lineup. Powered by the 5687 caliber with 17j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-5db1e33a20e1]

Also known as: Shogun, Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1979

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