Seiko Cal. 5278 - 148

The Seiko 5278-148 represents an important milestone in Seiko's 1967 lineup. With its 20mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-d02e6fe4704d]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1967

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