Seiko Cal. 4439 - 723

The 4439-723 is a sought-after Automatic piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-de824593ae3c]

Also known as: UFO, Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1980

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