Seiko Cal. 5274 - 428

The Seiko 5274-428 represents an important milestone in Seiko's 1968 lineup. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-524711f5031d]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1968

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