Seiko Cal. 6690 - 547

The Seiko 6690-547 represents an important milestone in Seiko's 1988 lineup. Powered by the 6690 caliber with 30j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-49c68f8682bd]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1988

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