Seiko Cal. 6668 - 509

Released in 1990, the Cal. 6668 with design code 509 was part of Seiko's domestic market collection. Powered by the 6668 caliber with 19j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-6be87051bb3a]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1990

Related Models

• Seiko 6644-956
• Seiko 4538-410
• Seiko 7152-330
• Seiko 5217-112
• Seiko 6654-570
• Seiko 5615-695
• Seiko 0718-902
• Seiko 4465-641
• Seiko 0747-634
• Seiko 7089-759
• Seiko 6634-363
• Seiko 4580-359