Seiko Cal. 6263 - 105

The 6263-105 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-9db43225ba1a]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1966

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