Seiko Cal. 6664 - 594

The Seiko 6664-594 represents an important milestone in Seiko's 1973 lineup. Powered by the 6664 caliber with 35j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-f1ddf9e8a98d]

Also known as: Tuna, Goldfeather

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1973

Related Models

• Seiko 5615-311
• Seiko 4595-790
• Seiko 7192-165
• Seiko 0710-413
• Seiko 7112-657
• Seiko 7059-292
• Seiko 4420-859
• Seiko 6619-151
• Seiko 3877-796
• Seiko 7113-244
• Seiko 3884-574
• Seiko 5222-813