Bezel Chuck
American Watchmaker and Jeweler (1892)
The Snyder patent Bezel Chuck, shown in Fig. 63, was originally intended for holding bezels only, but it is now made so that it will hold watch plates, coins, etc., and is adjustable to any size. It can be fitted to any lathe and requires but very little practice to use it, as it is extremely simple and any one who use a lathe can make or repair bezels in a workmanlike manner. It holds the work as in a vise, and no amount of turning or jarring will loosen the jaws, while it may be opened and closed instantly by simply turning the milled nut behind the face place, thus enabling the operator to turn and fit a bezel perfectly, by trying on the case as many times as necessary. It holds the bezel by either groove, so that the recess may be turned out when too shallow or too small for the glass, or the bezel may be inverted and turned away when it rests too hard on the dial. It will be found especially useful in turning out the inevitable lump of solder from the recess in the bezel, after soldering and in fitting to case, as the process of soldering generally makes the bezel shorter; and consequently it will not fit on the case. It also renders the operation of polishing bezels after soldering, but a few minutes' work. In turning out the recess for glass in bezels, especially heavy nickel bezels, it will prove a friend indeed, when for instance, you look through your stock of flat glasses and find none to fit, but have one that is just too large. All watchmakers know that if the groove in the bezel is imperfect it is apt to break the glass. The chuck is also useful as a barrel closer, holding work while engraving, and many other uses that will present themselves to the watch or case repairer.
What Has Changed in the Last Century
When the American Watchmaker and Jeweler described the Snyder chuck in 1892, a repairer routinely turned out a pocket-watch bezel's glass groove by hand because loose stock crystals never quite fitted; the passage assumes flat blown-glass crystals and soldered bezel repairs as everyday work. Both largely vanished: acrylic (plastic) crystals came in from the 1930s-40s and are simply pressed into a gasket, and mineral or sapphire crystals in modern wristwatches are fitted to sealed cases rather than fitted to the bezel on a lathe. The quartz watches that took over the market from the 1970s are more often replaced than repaired, and case work in service centres is done with press tools and factory parts. The watchmaker's lathe itself survives almost unaltered, and adjustable step or bezel chucks of this general kind are still sold for the 8mm collet lathes that remain the trade standard.
Written for this edition, 2026.