A frequently used, rib-like decoration applied to bridges and cocks of fine watches. Engraved prior to galvanizing, the pattern remains visible afterwards. Geneva waves are typically found only on the components of high-quality watches.
All Chronoswiss watches are equipped with transparent backs made of sapphire crystal.
After the invention of self-compensating balance-springs, the glucydur balance replaced the bimetallic compensating balance. It is made from an alloy of copper which contains approximately 3 percent beryllium, the admixture of which gives the metal a golden hue. The simpler nickel balances are silver in color. It has has a hardness of 380 Vickers, compared to 220 Vickers for a nickel balance and 180 Vickers for a brass balance. Thanks to its greater hardness, the glucydur balance can be excellently riveted, poised and finely regulated and is immune to oxidation.
world-time watch. Greenwich mean time. Greenwich Observatory is located along the meridian of zero degrees longitude. The Earth is divided into 24 time zones. Time is calibrated on Earth with reference to GMT. For example, New York’s local time is seven hours behind GMT (-7); local time in Sydney, Australia is 8 hours ahead of GMT (+8).
A precious metal. In very high-quality mechanical watches, components such as the screws on the balance’s rim, the settings for the jewels, the wheels or even the entire watch-movement may be made of gold.
A timepiece whose mainspring must be wound daily by manually twisting its crown.
The most commonly used shock absorption for pocket-watches and wristwatches, Incabloc shock absorption can be readily integrated into all calibers.
Display, e.g. display of the time, date, full calendar, equation of time or power reserve.
On watch-movements with an Indirect central second-hand, the impulse which propels the second-hand lies outside the actual flow of energy in the gear-train. Itis often found on calibers which are constructed with a small seconds subdial.