Hi Everybody, This is my first post here. I'm 47 years old and since early childhood, I was fascinated with time pieces, especially mechanical ones and of those, chronometers were the holy grail. IMHO a chronometer carries the strongest embodiment of a timepiece. A chronometer is "design/form follows function" in its purest form. OK... enough philosophy for one day... I want to buy my first chronometer: a Thomas Mercer serial 21xxx in (what seems to be) an excellent condition. It's a late 50's model. A few questions please: 1. Does an excellent condition Thomas Mercer worth 1500$? 2. The seller said " it has +-10 Sec accuracy per day, as is. If you'll service it, it will be much better." How much better can it get? 3. I visit London in December. Where can I service it in the hands of a fine horologist? 4. How much will is cost to service it? 5. Does a fine chronometer in general and a Thomas Mercer in particular keep its value?