Seiko Cal. 4539 - 381

The Seiko 4539-381 represents an important milestone in Seiko's 1979 lineup. It features a Cream dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-89940a908e2f]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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