Seiko Cal. 6691 - 336

The Seiko 6691-336 represents an important milestone in Seiko's 1997 lineup. Powered by the 6691 caliber with 18j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-3974d6a97729]

Also known as: UFO, Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1997

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