Seiko Cal. 6690 - 551

Released in 1992, the Cal. 6690 with design code 551 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-3aed7ea488e6]

Also known as: UFO, Bellmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1992

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