This 8 piece assortment comes with Bergeon 5499-A (34.5 x 34 mm), 5499-B (33.5 x 33 mm), 5499-C (32.5 x 32 mm), 5499-D (31.5 x 31 mm), 5499-E (30.5 x 30 mm), 5499-F (29.5 x 29 mm), 5499-G (28.5 x 28 mm), and 5499-H (27.5 x 27 mm).

Reversible Thread-On Delrin Dies for fitting watch bezels and 1 universal die. Die diameters: 25 x 26 mm, 27 x 28 mm, 29 x 30 mm, 31 x 32 mm, 33 x 33.5 mm, 34 x 34.5 mm, 35 x 35.5 mm, 36 x 36.5 mm, 37 x 37.5 mm, 38 x 38.5 mm, and a 45 mm universal die. All Horotec thread-on dies will work with the Bergeon 5500 Press. Set of 20 reversible tapered dies 40 different diameters in all. Supplied 3 steel supports for the tapered dies, and 3 plastic dies for mineral crystals.On wooden stand (dimensions: 370 x 150 mm). Outfit consisting of: - 1 press No 5500. - 1 set of 9 stakes No 5500-E. - 1 set of 12 stakes No 5500-10 to No 5500-21. - 1 set of 9 stakes No 5500-22 to No 5500-30. - 1 lower stake No 5500-31. - 1 support No 5500-T28. NOTE: Use extreme care in pressure fitting gold watches using a watch press because they are easily bent out of shape and damaged. A watch press can emit enormous pressure on a small surface so work carefully on any watch because the damage of bending a watch case or watch bezel is many times un-repairable. Five Types of press on crystals that we cover are: This is my preferred method for all compression fit crystals. Unfortunately, it is not possible for front loaders and you will still need to use the Crystal Lift style tool.

Assortment includes Bergeon 5500-38 (36 x 34 mm), 5500-22 (33 x 32 mm), 5500-23 (31 x 30 mm), 5500-24 (29 x 28 mm), 5500-25 (27 x 26 mm), 5500-26 (25 x 24 mm), 5500-27 (23 x 22 mm), 5500-28 (21 x 20 mm), 5500-29 (19 x 18 mm), 5500-30 (17 x 15 mm), and 5500-36 (14 x 12 mm).Hold case over crystal, press foot pedal to compress the crystal, slip case over the crystal, release foot pedal - you are done: Besides the common sizes above there are some specialty brand specific crystals available from Sternkreuz. Your can find them here. The crystal press die should rest on the crystal so that the bevel on the inside of the die rests on the curve between the wall of the crystal and the dome.

This is my first question on WatchRepairTalk and I’d like to know when to use a crystal lift and when to use a crystal press? The force applied by the press both pushes the crystal down as well as tries to reduce the diameter, or roll the skirt under. This helps get the crystal skirt started in the opening in the case. Reversible Thread-On Delrin Dies for fitting very domed watch crystals. Die diameters: 18 mm, 20 mm, 24 mm, 28 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, and 65 mm. Reversible dies are domed in one side and flat on the other. Works on small, normal and jumbo sized crystals. All Horotec thread-on dies will work with the Bergeon 5500 Press. I wasn't really aware of "front loaders", and in those cases, a crystal lift is, of course, a must. I'll get me one those for this watch and for future needs. Would you know if a crystal lift also can be just for acrylic crystals with a tension ring, or is it a bad idea? Having seen a few YouTube videos on how to use a crystal lift, it seems a very nifty tool!They make Acrylic crystals in 0.1mm or 0.02 increments or 1 to 2 tenths of a millimeter. Sometimes you will see them listed as a 300, 301, 295, 296 which would be translated to 30.0mm, 30.1mm, 29.5mm, 29.6mm. respectively. Insert the watch case or bezel on top the crystal and gently press down. While pressing down you move the case or bezel onto the compressed crystal until you can feel the crystal inside the grove and release. Is water resistance of this watch of any priority to you? Do you wish to retain operation of the bezel? Reversible Thread-On Delrin Dies for fitting crystals with tension ring. Die diameters: 42 x 45 mm, 47 x 50 mm, 52 x 55 mm, 57 x 60 mm, and 62 x 65 mm. Tapered wall reversible dies with inner side wall depth of 1.5mm. All Horotec thread-on dies will work with the Bergeon 5500 Press.

Once its been tightened down, about 0.2-0.3 mm, the crystal is set into the case bezel and released. This type of installation requires a press that pushes down on the new crystal from the top, in a uniform way over the entire surface of the crystal. The pusher/die on the press and the watch case need to be parallel, otherwise the glass will become crooked, and you risk breaking the crystal.There are 3 main ways to fit a watch crystal. Each will require its own specialized dies used to properly install the crystal into the case.