Seiko Cal. 4424 - 727

The Seiko 4424-727 represents an important milestone in Seiko's 1974 lineup. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-6672ae5ecd22]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1974

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