Buying notes: Buy Rolex
Find the right reference
Start with the function you will actually use. Compare Datejust and Oyster Perpetual for everyday wear, Submariner for a diving-style timing bezel, GMT-Master II for travel and Daytona for elapsed-time measurement. A chronograph is not a second-time-zone display. A dress cuff, wrist size and preference for a date window often narrow the choice more effectively than popularity.
Compare condition and what is included
On a pre-owned Rolex, examine case symmetry, bezel condition, bracelet articulation and the clasp rather than judging only the dial photograph. Ask which dial, hands or bracelet parts were replaced. A later genuine service component can be suitable for daily wear while being less attractive to a buyer seeking period originality.