Seiko Cal. 5278 - 318

The Seiko 5278-318 represents an important milestone in Seiko's 1970 lineup. With its 20mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-dddc72bdbec9]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1970

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