Seiko Cal. 6660 - 254

The 6660-254 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6660 caliber with 33j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-790bcdc2f2c3]

Also known as: Turtle, Sumo

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1966

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