Seiko Cal. 6690 - 441

Released in 1975, the Cal. 6690 with design code 441 was part of Seiko's domestic market collection. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-14ff10fe1f14]

Also known as: Crown, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1975

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