Seiko Cal. 4430 - 538

The Seiko 4430-538 represents an important milestone in Seiko's 1986 lineup. With its 21mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-98c4f6eba38f]

Also known as: Sumo, Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1986

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