Seiko Cal. 0721 - 864

The Seiko 0721-864 represents an important milestone in Seiko's 1980 lineup. Powered by the 0721 caliber with 24j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-e0debe4b7810]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1980

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