Time is money for watchmakers like Patek Philippe and Omega. They are more than a century old and two of the top players in the world. CNBC's Managing Asia finds out how they keep up with the times and tackle current day challenges like increasing competition and rising commodity costs. We meet Stephen Urquhart, President of Omega, and the father-and-son team running Patek Philippe, Philippe and Thierry Stern. (27 August)