Seiko Cal. 7028 - 740

The Seiko 7028-740 represents an important milestone in Seiko's 1968 lineup. With its 22mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-c4a1e8168ab3]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1968

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