Seiko Cal. 6691 - 109

The Seiko 6691-109 represents an important milestone in Seiko's 1968 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-5833d0d7c8bb]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1968

Related Models

• Seiko 6628-502
• Seiko 4552-208
• Seiko 3838-627
• Seiko 6177-470
• Seiko 6639-220
• Seiko 4420-894
• Seiko 3857-955
• Seiko 5270-735
• Seiko 6640-395
• Seiko 6113-706
• Seiko 5627-974
• Seiko 6319-634