When it comes to watches, i have two habits.
1. By coincidence i walk by a watch boutique. Look trough the window, and if i see a nice watch, i go inside and buy.
2. I read online watch articles. Go to chrono24 to do some research, and when a retailer have that watch for a reasonable price, i wil have a talk. If it is irresistible i buy the watch. No escape possible.
On this moment i have a serious Bvlgari watching behavior.