The #Rolex Deepsea owes its exceptional strength, waterproofness and pressure resistance to the exclusive Ringlock System. This innovative case... | By ROLEX | Facebook
How Does a Ring Lock System Work? - Crown & Caliber Blog
Authentic New 116660 Rolex Deepsea D-Blue Dial Men's Watch on Sale | AuthenticWatches
Up Close with the Rolex Deepsea D-Blue (and Explaining the Ingenious Ringlock System) | SJX Watches
Rolex Sea-Dweller Deepsea 116660 – HODINKEE Shop
ROLEX on Instagram: “Rolex unveils the Oyster Perpetual Deepsea Challenge. Made of RLX titanium and equipped with the Ringlock system and a helium escape valve,…”