Seiko Cal. 4422 - 509

The Seiko 4422-509 represents an important milestone in Seiko's 1976 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-18a261792ea4]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1976

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