I'm thinking about getting my first Omega and I'm torn between the Seamaster 300 Master Co-Axial and the Aqua Terra Master Co-Axial. I'm looking for a good all around every day watch - something I can wear with a suit to the office as well as on weekends. I like the clean understated look of the AT, but the 300 is a little more distinctive looking without being too eye-catching. The 300 seems to look bigger even though the AT is 0.5 mm larger at 41.5 mm. I understand that the 8400 movement in the 300 is the same as the 8500 in the AT apart from the date function. What are the pros and cons of each? Which would make a better choice?