Seiko Cal. 4438 - 337

The Seiko 4438-337 represents an important milestone in Seiko's 1974 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-9942058d3654]

Also known as: UFO, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1974

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