Seiko Cal. 5660 - 897

Released in 1965, the Cal. 5660 with design code 897 was part of Seiko's domestic market collection. Powered by the 5660 caliber with 31j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-b980c3e4721c]

Also known as: Emperor, Flighty

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1965

Related Models

• Seiko 6659-822
• Seiko 6690-494
• Seiko 4422-381
• Seiko 6232-155
• Seiko 6114-519
• Seiko 7043-941
• Seiko 3827-756
• Seiko 6621-846
• Seiko 6681-983
• Seiko 7043-427
• Seiko 6665-865
• Seiko 0745-657