Seiko Cal. 0730 - 921

This Spring Drive model from 1973 features a 42mm PVD Black case. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-6eb047836adf]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

27j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1973

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