Seiko Cal. 6668 - 691

The Seiko 6668-691 represents an important milestone in Seiko's 1976 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-15ffa510841e]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1976

Related Models

• Seiko 3842-738
• Seiko 5220-789
• Seiko 6673-767
• Seiko 3893-103
• Seiko 6698-238
• Seiko 5228-628
• Seiko 7153-680
• Seiko 0741-574
• Seiko 4496-563
• Seiko 4524-129
• Seiko 6254-348
• Seiko 0721-437