Seiko Cal. 5628 - 721

The Seiko 5628-721 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-7024e2d17bc9]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1977

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