Seiko Cal. 6668 - 522

The 6668-522 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6668 caliber with 18j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-f729f36fe7f8]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1992

Related Models

• Seiko 6218-341
• Seiko 5667-593
• Seiko 6664-782
• Seiko 6345-698
• Seiko 0764-999
• Seiko 4497-180
• Seiko 4484-288
• Seiko 3854-244
• Seiko 4440-432
• Seiko 3841-620
• Seiko 3814-612
• Seiko 6678-252