Seiko Cal. 6691 - 676

Released in 1991, the Cal. 6691 with design code 676 was part of Seiko's domestic market collection. Powered by the 6691 caliber with 17j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-b98488acd9a7]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

17j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1991

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