Seiko Cal. 6660 - 655

The Seiko 6660-655 represents an important milestone in Seiko's 1992 lineup. Powered by the 6660 caliber with 18j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-3c7586790b8f]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1992

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