Seiko Cal. 6663 - 563

The Seiko 6663-563 represents an important milestone in Seiko's 1981 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-179e80aa08ea]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1981

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