Seiko Cal. 6660 - 928

This Hand-Winding model from 1966 features a 35mm Titanium case. Powered by the 6660 caliber with 32j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-25b3d47b8095]

Also known as: UFO, World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1966

Related Models

• Seiko 4555-413
• Seiko 7156-613
• Seiko 5629-950
• Seiko 6299-102
• Seiko 0793-960
• Seiko 6347-779
• Seiko 6144-198
• Seiko 6350-455
• Seiko 5667-657
• Seiko 6653-310
• Seiko 6238-914
• Seiko 7155-261