Seiko Cal. 6660 - 865

The Seiko 6660-865 represents an important milestone in Seiko's 1989 lineup. Powered by the 6660 caliber with 18j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-76d328fd22d3]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1989

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