Seiko Cal. 5260 - 278

This Spring Drive model from 1967 features a 42mm Hardlex-Coated Steel case. It features a Navy dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-26756cdcd70b]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1967

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