Seiko Cal. 5663 - 487

This Automatic model from 1981 features a 37mm Gold-Plated case. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-1c276d912232]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1981

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