Seiko Cal. 4539 - 103

The Seiko 4539-103 represents an important milestone in Seiko's 1973 lineup. With its 19mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-505710813013]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1973

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