Seiko Cal. 0730 - 721

The Seiko 0730-721 represents an important milestone in Seiko's 1979 lineup. It features a Black dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-b7f8c67b3268]

Also known as: UFO, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

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