Seiko Cal. 6664 - 861

The 6664-861 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6664 caliber with 25j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-c4eebce1f272]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1993

Related Models

• Seiko 0780-326
• Seiko 6318-415
• Seiko 4570-375
• Seiko 0721-841
• Seiko 6320-908
• Seiko 4594-767
• Seiko 5651-909
• Seiko 5661-318
• Seiko 6380-552
• Seiko 6371-929
• Seiko 5210-264
• Seiko 7125-368