Seiko Cal. 6639 - 958

The Seiko 6639-958 represents an important milestone in Seiko's 1968 lineup. With its 19mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-63dd308358ec]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1968

Related Models

• Seiko 6175-749
• Seiko 0791-297
• Seiko 7078-812
• Seiko 3867-745
• Seiko 7097-629
• Seiko 6629-383
• Seiko 6116-791
• Seiko 6161-442
• Seiko 4424-941
• Seiko 4583-995
• Seiko 7192-990
• Seiko 6356-940