Seiko Cal. 6688 - 732

The Seiko 6688-732 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-e939f6c59e2f]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1976

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