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

Product Information

Also l1 is the cutout for the stem/crown, was thinking of making it U shaped rather than square, but would model it as a square and simply fillet the corners to make it a U shape. Assortment includes Bergeon 5500-37 (48 x 46 mm), 5500-10 (44 x 42 mm), 5500-11 (40 x 38 mm), 5500-12 (35 x 34 mm), 5500-13 (33 x 32 mm), 5500-14 (31 x 30 mm), 5500-15 (29 x 28 mm), 5500-16 (27 x 26 mm), 5500-17 (25 x 24 mm), 5500-18 (23 x 22 mm), 5500-19 (21 x 20 mm), 5500-20 (19 x 18 mm), 5500-21 (17 x 15 mm).

Hold case over crystal, press foot pedal to compress the crystal, slip case over the crystal, release foot pedal - you are done: 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. Comes in a set of 9 bakelite lower stake dies. Assortment includes Bergeon 5500-01 (40 mm), 5500-02 (36 mm), 5500-03 (32 mm), 5500-04 (28 mm), 5500-05 (24 mm), 5500-06 (20 mm), 5500-07 (16 mm), 5500-08 (14 mm), and 5500-09 (12 mm). Here is what I sketched in my lunch hour (including a doodle I did whilst on a very boring conference call) on Friday:These crystals are referred to by a few names, Armored, "A" type, reflector ring or tension ring, but are all the same thing. These rings are often split but the split in the ring should be closed when the ring is installed at the lower lip of the crystal. The ring must be fitted into the crystal before the crystal is pressed into the watch. 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. These Bergeon tapered wall dies are reversible (each piece has two different sizes, one on each side). Comes in a set of 13 pieces. For fitting certain crystal types, including tension rings. 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.

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. No, not really, but I have now! As shown in the pictures, the case looks like it consists of two parts. One part holding the crystal and the chapter ring (thanks for the correct term), and the other part holding the movement. Looking at the outside of the case it looks like these two parts have been screwed, pressed, or perhaps glued on to one another, or, is it indeed once piece simply designed to look like two, hmm... I wonder if these parts can be separated? Oh well, once I get the crystal off, maybe the chapter ring can be removed. I guess I shouldn't try to pry it, right? 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 is the one that is used and has abused more crystals than any other installation tool. The problem arises because some will mistakenly use them to try to install a tension ring crystal and they keep tightening down the screw attempting to compress the crystal, or they try to use it on a that doesn’t have enough side wall to grip onto. This usually results in gouges around the perimeter of the new crystal. Is water resistance of this watch of any priority to you? Do you wish to retain operation of the bezel? Once its been tightened down, about 0.2-0.3 mm, the crystal is set into the case bezel and released. 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. 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.

You cannot use the same die for an armored acrylic crystal like you would for an ordinary flat or domed mineral crystal. Tension ring crystals have a high straight side so that they can be pushed straight down while slightly bending in at the same time. 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 🙂 Besides the common sizes above there are some specialty brand specific crystals available from Sternkreuz. Your can find them here. 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! For this crystal, I believe a crystal lift (which I don’t have) is the right tool? I do have a crystal press but I don’t dare to use it on this crystal. My guess is that a crystal lift is used for acrylic crystals without a tension ring and that a crystal press is used for acrylic crystals with a tension ring and for crystals in mineral glass and sapphire? Anyway, I’m just guessing here and really don’t know so I’d really appreciate some facts about "Crystal Press vs. Crystal Lift".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. I’ve also contemplated just trying to remove the metal edge holding the Roman numerals from inside the case, but as far as I can tell having had a close look in my stereomicroscope (40X), the inner rim of the watch case holding the Roman numerals is an integral part of the case, i.e. not removable. I don’t have a camera for my stereomicroscope so here’s a macro shot (iPhone with macro lens). Perhaps it is indeed removable and it’s only an optical illusion? What do you think? It certainly won’t budge one bit when I try to pull it and wiggle it.