Seiko Cal. 5660 - 686

The 5660-686 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5660 caliber with 28j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-7c82da6bc88a]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1999

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