I'm thinking about selling my two Cartier quartz movement watches and buying a Oyster Perpetual. Between the servicing every 5 years, the battery changes, and changing the leather band on one of them - I feel like my Cartier watches are too high maintenance for my taste and a Rolex might suit me better. I read that Rolex suggests a having their watches serviced every 10 years. Is there anything that I am not thinking of as far as upkeep goes?