Seiko Cal. 5278 - 856

This Kinetic model from 1965 features a 37mm Hardlex-Coated Steel case. With its 19mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-30322a1f6826]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1965

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