Seiko Cal. 4439 - 353

The Seiko 4439-353 represents an important milestone in Seiko's 1966 lineup. It features a Green dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-56810192870a]

Also known as: UFO, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1966

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