Seiko Cal. 5255 - 146

The Seiko 5255-146 represents an important milestone in Seiko's 1967 lineup. With its 20mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-a120a8f1b0d3]

Also known as: Helmet, Rally

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1967

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