Music was such an important part of life in the Baroque era that it can be found in all kinds of places. This instrument, the Trompe Dauphine, is a kind of hunting horn and would have been carried on horseback during the hunt and used to play signals to let the rest of the hunt know what was happening.
As a general rule: 1  Quartz models should be given a routine service every other time the battery is changed. 2  Regular mechanical models should need routine service only every 5 years or so. 3  OMEGA states that their Coaxial models should need routine service only every 10 years.
Best Answer: It all depends on where you live, the installation, how often you service it, and the unit you buy (depending on the mfg instructions). I've seen some as old as 30 years and still operating. Usually servicing should occur once a year and this may be a simple as oiling parts.