Seiko Cal. 6612 - 663

The Seiko 6612-663 represents an important milestone in Seiko's 1970 lineup. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-436ed14a5e1a]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1970

Related Models

• Seiko 4478-830
• Seiko 4434-356
• Seiko 4424-575
• Seiko 6695-927
• Seiko 6336-145
• Seiko 5227-480
• Seiko 6313-331
• Seiko 3831-435
• Seiko 4565-141
• Seiko 5293-412
• Seiko 6188-632
• Seiko 6265-307