Seiko Cal. 6693 - 764

The Seiko 6693-764 represents an important milestone in Seiko's 1966 lineup. Powered by the 6693 caliber with 23j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-3db672d4aa84]

Also known as: Turtle, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1966

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