Seiko Cal. 0721 - 423

The Seiko 0721-423 represents an important milestone in Seiko's 1983 lineup. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-185d845fc0ed]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1983

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