Seiko Cal. 5660 - 852

The Seiko 5660-852 represents an important milestone in Seiko's 1991 lineup. Powered by the 5660 caliber with 20j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-2748a8d07842]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1991

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