Seiko Cal. 6363 - 644

This Hand-Winding model from 1965 features a 34mm Titanium case. It features a Black dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-feb1e75adb0c]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1965

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