Seiko Cal. 5263 - 379

The Seiko 5263-379 represents an important milestone in Seiko's 1985 lineup. With its 22mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-e00e9ff9fb99]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1985

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