Seiko Cal. 6664 - 340

Released in 1975, the Cal. 6664 with design code 340 was part of Seiko's domestic market collection. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-02025ce3fba5]

Also known as: Rally

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1975

Related Models

• Seiko 6688-204
• Seiko 7017-351
• Seiko 3870-626
• Seiko 6211-192
• Seiko 7195-764
• Seiko 5269-925
• Seiko 5255-238
• Seiko 7021-320
• Seiko 6252-558
• Seiko 0799-139
• Seiko 7190-853
• Seiko 6318-941