Seiko Cal. 4539 - 868

The Seiko 4539-868 represents an important milestone in Seiko's 1967 lineup. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-ccc89a7e4123]

Also known as: Helmet, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1967

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