Seiko Cal. 6693 - 764

The Seiko 6693-764 represents an important milestone in Seiko's 1983 lineup. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-f5029ba8144d]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1983

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