Seiko Cal. 4422 - 351

The Seiko 4422-351 represents an important milestone in Seiko's 1989 lineup. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-e246e9f3fcc7]

Also known as: Bullhead, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1989

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