Seiko Cal. 5679 - 638

The Seiko 5679-638 represents an important milestone in Seiko's 1969 lineup. With its 18mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-90ea21056e59]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

42mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1969

Related Models

• Seiko 6679-669
• Seiko 6195-424
• Seiko 0756-121
• Seiko 7124-951
• Seiko 5632-576
• Seiko 6695-354
• Seiko 6383-351
• Seiko 5246-820
• Seiko 5279-856
• Seiko 6133-346
• Seiko 3876-521
• Seiko 5611-616