Seiko Cal. 6668 - 123

The Seiko 6668-123 represents an important milestone in Seiko's 1988 lineup. Powered by the 6668 caliber with 21j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-bcd8acdcad7b]

Also known as: Sumo, Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1988

Related Models

• Seiko 7192-990
• Seiko 5289-642
• Seiko 6237-389
• Seiko 4582-316
• Seiko 6239-271
• Seiko 0733-683
• Seiko 4442-610
• Seiko 6612-657
• Seiko 4483-813
• Seiko 3812-982
• Seiko 6275-902
• Seiko 6220-935