Seiko Cal. 6690 - 216

The Seiko 6690-216 represents an important milestone in Seiko's 1971 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-de686675cf6a]

Also known as: UFO, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1971

Related Models

• Seiko 5255-471
• Seiko 7010-577
• Seiko 7177-816
• Seiko 7096-625
• Seiko 3853-711
• Seiko 6692-773
• Seiko 0761-958
• Seiko 6123-784
• Seiko 4447-702
• Seiko 4427-492
• Seiko 0734-945
• Seiko 5276-579