For that amount of money, I recommend you to look at pre-owned Omega Speedmasters. You can choose either one listed below.
1st, the Speedmaster Reduced, which is an automatic version of the famous Speedmaster professional.

2nd, the Speedmaster Date, which as the name stated, has a date complication.

3rd, the Speedmaster Triple Calender, which has chronograph, date, day, month, GMT all in one, and for your record, this might as well be the most complication in an automatic watch you can buy with your budget.
