Seiko Cal. 6691 - 988

The 6691-988 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6691 caliber with 33j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-26a55200c2e6]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1980

Related Models

• Seiko 3892-125
• Seiko 7128-293
• Seiko 6678-678
• Seiko 6215-891
• Seiko 5227-668
• Seiko 6238-834
• Seiko 4576-536
• Seiko 4444-438
• Seiko 3865-753
• Seiko 6390-625
• Seiko 7195-651
• Seiko 6237-131