Seiko Cal. 5660 - 366

The Seiko 5660-366 represents an important milestone in Seiko's 1970 lineup. Powered by the 5660 caliber with 20j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-8b7b72dc8c7b]

Also known as: Panda, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1970

Related Models

• Seiko 4450-748
• Seiko 6686-974
• Seiko 4488-556
• Seiko 5629-144
• Seiko 4563-664
• Seiko 6357-148
• Seiko 6262-917
• Seiko 6627-640
• Seiko 5687-726
• Seiko 5677-913
• Seiko 6249-968
• Seiko 7017-590