Seiko Cal. 6660 - 993

The Seiko 6660-993 represents an important milestone in Seiko's 1969 lineup. Powered by the 6660 caliber with 22j jewels beating at 28,800 bph, it delivers a 52 hours power reserve. [seikata-wm-9959011b0ca1]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1969

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