Seiko Cal. 6664 - 343

The Seiko 6664-343 represents an important milestone in Seiko's 1979 lineup. Powered by the 6664 caliber with 22j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-1ec585fecb5b]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1979

Related Models

• Seiko 6210-929
• Seiko 6330-976
• Seiko 7150-885
• Seiko 6121-545
• Seiko 6284-386
• Seiko 6222-914
• Seiko 6174-322
• Seiko 3815-133
• Seiko 6370-781
• Seiko 6370-157
• Seiko 4461-296
• Seiko 0759-249