Seiko Cal. 0728 - 303

The Seiko 0728-303 represents an important milestone in Seiko's 1975 lineup. Powered by the 0728 caliber with 21j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-3a35e1100fae]

Also known as: Crown, Arnie

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1975

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