Seiko Cal. 6660 - 754

The 6660-754 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6660 caliber with 36j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-f2ac1f7164d7]

Also known as: Tuna, UFO

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1977

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