Seiko Cal. 5663 - 921

This Spring Drive model from 1987 features a 35mm Hardlex-Coated Steel case. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-63df49aa9328]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1987

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