Seiko Cal. 5687 - 123

This Solar model from 1982 features a 45mm Hardlex-Coated Steel case. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-1c362bf9bfe1]

Also known as: Sumo, Emperor

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1982

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