Made To Fit Rolex® 116660 Deepsea Sea Dweller 36.5mm Watch Case Back Opener Die and Die Key Holder Wrench Set

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Our new case back opener was developed to remove casebacks from the Rolex® 116660 Deepsea Sea Dweller model. This professional tool set includes a precision stainless steel die with a 36.5 mm diameter which is very well built. It interlocks with the die holder or key handle and is held securely with a heavy-duty set screw. Ergonomically designed, the handle is comfortable and provides more than enough torque to remove and install the seadweller case backs. The handle features grooves to prevent slipping and give the user complete control and feel over the die to prevent any damage when opening the watch. The key can also accommodate a variety of other watch back dies with an 8mm end.

  • Made to fit Rolex® 116660 Deepsea Sea Dweller case back opener and close tool set
  • Includes 36.50mm die and universal die key holder wrench
  • Die is professional quality and made of stainless steel
  • Ergonomic design allows for good grip, comfort and control
  • Die holding key allows for more than enough torque to be applied to remove and install case back
  • Die key also works with other brand and style watch back dies with 8mm end tip


Esslinger & Co. is independent of and not affiliated with or sponsored by Rolex®. Warranty does not apply to non-genuine parts supplied by Esslinger & Co.

Click Here to Learn How to Open a Watch Back Click Here to Learn How to Measure Watch Back for Case Opening Dies