Seiko Cal. 6630 - 491

Released in 1982, the Cal. 6630 with design code 491 was part of Seiko's domestic market collection. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-723c79ea76cb]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1982

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