Seiko Cal. 5273 - 421

This Spring Drive model from 1965 features a 34mm Hardlex-Coated Steel case. With its 20mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-4fad6b5af2eb]

Also known as: Tuna, Arnie

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1965

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