Seiko Cal. 6668 - 728

The Seiko 6668-728 represents an important milestone in Seiko's 1966 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-d8e0ed650d87]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1966

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