Seiko Cal. 6690 - 317

The Seiko 6690-317 represents an important milestone in Seiko's 1995 lineup. Powered by the 6690 caliber with 36j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-f2dce6bc70be]

Also known as: Bullhead, Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1995

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