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Posted 20 hours ago

Watch Press, 18mm to 50mm Watch Back Case Screw Type Precise Crystal Bezel Watchmaker Watch Repair Tool Set - Watch Back Case Cover Press Tool with 20 Dies Pressing Repair

£9.9£99Clearance
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About this deal

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. This set contains 4 jumbo size reversible delrin thread-on dies for fitting flat mineral crystals. Die diameters: 47 x 50 mm, 52 x 55 mm, 57 x 60 mm, and 62 x 65 mm. All Horotec thread-on dies will work with the Bergeon 5500 Press. Five Horotec Jumbo Size Reversible Thread-On Delrin Dies for fitting watch bezels. Die diameters: 40 x 45 mm, 46 x 50 mm, 52 x 55 mm, 57 x 60 mm, and 62 x 65 mm. All Horotec thread-on dies will work with the Bergeon 5500 Press.

This allows the tightening tool to be set onto the base and tighten, keeping the tool about a 1/16 of on inch off the bottom edge of the crystal. h3 = 5mm (will only need this outer dimension also to be h3 if I decide to keep the 'shoulders' at the top of the model, thinking I may just skip the outer shoulders and have the top and bottom linked by an ark without the shoulders... I will need to think about this....any ideas??? My initial thinking is that the shoulders may flex a little as you push the movement in and grip the movement better, but not sure how realistic this idea is?) - see version 1 and version 2 below. The compression fit crystal is the weakest of all the crystal types as far as water resistance is concerned. To install the crystal, the skirt must be mechanically compressed to reduce the diameter by approximately .20 to .30 mm before being inserted.Once I get to grips with it, I'll post the freeCAD design on thingiverse and you can also PM me for it from here 🙂 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.

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. 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 Set includes: 2 Reversible Delrin Dies for fitting watch bezels (40 x 45 mm and 46 x 50 mm); inner side wall depth is 4mm. 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. 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:

Once again, Bergeon has listened to the needs of the watch repair industry servicing luxury watches. Bergeon already has the largest selection of screw-on dies, what was needed from Bergeon a truly precision straight screw press to go with the dies Bergeon makes. Well, it's here now Swiss Made with Anodized aluminum frame with non-slip base that can be bolted down if desired. Truly Linear Spindle with Anti-rotation, allow for a straight traveling path while controlling precisely the distance the dies moves downward. Compatible with the complete range of Bergeon and Bergeon type screw-on dies. Supplied with die holder height 21 mm, optional die holders in heights 5 mm and 28 mm are available. Is water resistance of this watch of any priority to you? Do you wish to retain operation of the bezel? This is the installation method used for almost all sapphire and mineral glass, both flat and domed. There is a gasket between the outside edge of the crystal and inside edge of the case. The gasket is usually going to be made from a hard nylon. The gasket will be either “L” shaped or “I” shaped and should be always be replaced for top class work. 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. I'll stay away from the crystal press in this case. I don't want to take any chances, and after all, I'll be getting myself a crystal lift, and while waiting for it to arrive I'll service the movement and clean the other parts.

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