Seiko Cal. 5278 - 610

The Seiko 5278-610 represents an important milestone in Seiko's 1971 lineup. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-cbe97cd1366d]

Also known as: Tuna, Rally

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1971

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