Seiko Cal. 5281 - 310

This Spring Drive model from 1976 features a 34mm PVD Black case. With its 21mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-53fb3b764eda]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1976

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