Crown doesn't immediately "pop out" when unscrewed? - Rolex Forums - Rolex Watch Forum
Twinlock vs. Triplock: What's the Difference?
Rolex Twinlock vs. Triplock Crowns - What's The Difference?
ROLEX - Three dots of the same size on a Rolex screw-down winding crown identifies it as a Triplock in steel, equipped with a triple waterproofness system. www.instagram.com/rolex #Rolex #ThroughTheLoupe | Facebook