Seiko Cal. 4439 - 180

The Seiko 4439-180 represents an important milestone in Seiko's 1972 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-5fddfbb05ab6]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1972

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