Seiko Cal. 6663 - 578

The Seiko 6663-578 represents an important milestone in Seiko's 1980 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-8e55fb152933]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1980

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