No, but they send reminder emails after a few days and unless things have changed you have a good couple of weeks. A month would likely be pushing it.
@rneglia When I reserved my watch on the 28th I ended up picking it up two days later on the 30th. I hadn't even gotten a reminder email yet like I have with phones in the past. You'll be just fine.
Last year I was unable to pick up an order promptly due to an unexpected trip. Just assumed I could drop into the store when I arrived home however @ 2 weeks later I received an email stating my order had been canceled.