Seiko Cal. 6691 - 957

The Seiko 6691-957 represents an important milestone in Seiko's 1993 lineup. Powered by the 6691 caliber with 32j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-a2b98b1e1c8e]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1993

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