Seiko Cal. 6690 - 775

Released in 1969, the Cal. 6690 with design code 775 was part of Seiko's domestic market collection. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-aff863eef556]

Also known as: UFO, Rally

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1969

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