Seiko Cal. 5687 - 192

This Spring Drive model from 1985 features a 36mm Hardlex-Coated Steel case. Powered by the 5687 caliber with 27j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-5d9c57f2496b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1985

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