Seiko Cal. 6664 - 900

The 6664-900 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6664 caliber with 30j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-1e6eb5f88d21]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1975

Related Models

• Seiko 0748-144
• Seiko 6683-139
• Seiko 5626-663
• Seiko 6348-278
• Seiko 6327-407
• Seiko 6222-517
• Seiko 7082-238
• Seiko 6617-692
• Seiko 6681-854
• Seiko 5227-143
• Seiko 3830-169
• Seiko 6343-948