Seiko Cal. 6691 - 515

This Hand-Winding model from 1990 features a 42mm Stainless Steel case. With its 19mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-04ea6fe40984]

Also known as: Helmet, Arnie

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1990

Related Models

• Seiko 4413-563
• Seiko 6328-110
• Seiko 0711-292
• Seiko 7199-542
• Seiko 5687-435
• Seiko 5610-131
• Seiko 4558-526
• Seiko 6152-422
• Seiko 5634-592
• Seiko 5617-825
• Seiko 7018-366
• Seiko 5626-929