Seiko Cal. 5660 - 731

This Kinetic model from 1981 features a 40mm PVD Black case. Powered by the 5660 caliber with 21j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-d4ad08df631a]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Cream

Jewels

21j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1981

Related Models

• Seiko 7140-896
• Seiko 5261-967
• Seiko 4557-180
• Seiko 6369-384
• Seiko 4574-390
• Seiko 6625-202
• Seiko 4414-801
• Seiko 4579-666
• Seiko 6617-957
• Seiko 3872-132
• Seiko 5674-659
• Seiko 6170-205