Seiko Cal. 6659 - 717

The Seiko 6659-717 represents an important milestone in Seiko's 1965 lineup. Powered by the 6659 caliber with 19j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-8e1475e84767]

Also known as: Helmet, UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1965

Related Models

• Seiko 3811-241
• Seiko 5288-840
• Seiko 3874-639
• Seiko 5643-750
• Seiko 4589-424
• Seiko 4596-582
• Seiko 5662-959
• Seiko 6346-159
• Seiko 6370-427
• Seiko 6685-473
• Seiko 3891-867
• Seiko 5243-878