Seiko Cal. 6691 - 677

The Seiko 6691-677 represents an important milestone in Seiko's 1984 lineup. Powered by the 6691 caliber with 36j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-0d26293e9c9e]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1984

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