Seiko Cal. 6659 - 139

This Spring Drive model from 1968 features a 38mm Titanium case. With its 20mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-fa7883642779]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1968

Related Models

• Seiko 6152-236
• Seiko 0744-823
• Seiko 0726-319
• Seiko 4517-843
• Seiko 3823-105
• Seiko 6337-106
• Seiko 6668-235
• Seiko 4559-811
• Seiko 4561-711
• Seiko 5613-598
• Seiko 7047-578
• Seiko 5652-576