Inspired by Ian's post, I've been thinking about selling my 57C, or offering the 57C plus cash, for trade so I can get a 233. Do you think this is a reasonable consideration? I love the 57C and it it very unique with the tobacco hobnail dial. It is also older with a relatively small production so I don't see the 57 often. However, I like the 8-day power reserve, GMT function, and quick-change strap system on the 233. What do you think?