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.
200 and 400 Hours Service Kits. VMAC recommends servicing your UNDERHOOD Air Compressor System every 200 hours. To maintain your UNDERHOOD VR70, use VMAC Accessory Products â 200 Hour and 400 Hour Service Kits.MAC recommends servicing your Air Vantage 500 Air Compressor System every 500 hours or 1 year, whichever comes first regardless of whether the compressor is being used. VMAC also recommends replacing the Coalescing Filter every 1,000 hours.