Seiko Cal. 6643 - 983

The Seiko 6643-983 represents an important milestone in Seiko's 1970 lineup. With its 22mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-60a7615ee95b]

Also known as: Sea Horse

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1970

Related Models

• Seiko 5676-591
• Seiko 3878-791
• Seiko 5643-137
• Seiko 4436-651
• Seiko 4511-196
• Seiko 6181-562
• Seiko 5284-348
• Seiko 3847-836
• Seiko 6144-831
• Seiko 7032-191
• Seiko 5664-875
• Seiko 4514-832