Seiko Cal. 4422 - 757

The Seiko 4422-757 represents an important milestone in Seiko's 1966 lineup. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-91c72f587951]

Also known as: Sportsmatic, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1966

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