Seiko Cal. 6691 - 315

The Seiko 6691-315 represents an important milestone in Seiko's 1988 lineup. Powered by the 6691 caliber with 36j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-01ea598daf05]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1988

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