Seiko Cal. 5263 - 278

The 5263-278 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-dc16227bf154]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1980

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