Seiko Cal. 6664 - 306

Released in 1971, the Cal. 6664 with design code 306 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-2a9de1090548]

Also known as: UFO, Goldfeather

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1971

Related Models

• Seiko 7139-190
• Seiko 7019-934
• Seiko 4430-636
• Seiko 7142-380
• Seiko 6311-227
• Seiko 7078-150
• Seiko 6219-373
• Seiko 6610-264
• Seiko 4467-995
• Seiko 7050-297
• Seiko 5623-620
• Seiko 6675-487