Seiko Cal. 4430 - 723

The Seiko 4430-723 represents an important milestone in Seiko's 1967 lineup. With its 22mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-91fe957c3b71]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1967

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