Seiko Cal. 6689 - 709

The Seiko 6689-709 represents an important milestone in Seiko's 1991 lineup. With its 22mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-46567b8ca9db]

Also known as: Sumo, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1991

Related Models

• Seiko 7024-318
• Seiko 0764-682
• Seiko 6131-484
• Seiko 6166-318
• Seiko 6698-352
• Seiko 6338-184
• Seiko 0742-525
• Seiko 4468-615
• Seiko 6330-598
• Seiko 7117-312
• Seiko 7181-758
• Seiko 6264-292