Seiko Cal. 5664 - 857

The Seiko 5664-857 represents an important milestone in Seiko's 1997 lineup. Powered by the 5664 caliber with 29j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-332f9a653e73]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1997

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