A replica Rolex Daytona 6263 is a copy of the vintage manual-wind chronograph that Rolex produced from the early 1970s to the late 1980s. The best replicas match the original's 37 mm case, screw-down pushers, and acrylic bezel. Use the steps below to judge a replica's accuracy and function.

Prerequisites

  • 10x jeweler's loupe
  • Digital calipers
  • Small flat-head screwdriver
  • Soft cloth

Steps

  1. Measure the case diameter with calipers. The original 6263 measures 37 mm across, excluding the crown.
  2. Check the pushers. The 6263 has screw-down pushers. Turn each pusher counterclockwise to unscrew it, then press to start, stop, and reset the chronograph.
  3. Inspect the bezel. A correct 6263 replica has a black acrylic bezel with a tachymeter scale. The scale should be printed with crisp edges, not etched into metal.
  4. Examine the dial. The subdials at 3, 6, and 9 o'clock should be recessed. The text "ROLEX" and "OYSTER PERPETUAL" should align with the original font weight.
  5. Look at the crystal. The 6263 uses a domed acrylic crystal, not sapphire. Check for a slight bulge above the bezel.
  6. Verify the crown. The crown should be 6 mm and signed with the Rolex coronet. It should screw down onto the tube with no gap.
  7. Test the chronograph. Start the chronograph, let it run for 60 seconds, then stop and reset. The seconds hand should return to 12 o'clock without hesitation.
  8. Open the case back. Use the screwdriver to remove the case back. The movement should be a manual-wind chronograph. A Valjoux 72 or 727 clone is common. Check for a smooth winding action.
  9. Check the engravings. Between the lugs at 12 o'clock, look for "6263" and a serial number. The font should be crisp and shallow.
  10. Compare the weight. A stainless steel replica should weigh about 60 to 70 grams with the bracelet. A lightweight feel suggests cheap materials.

What to Avoid

  • Pushers that do not screw down
  • Sapphire crystal instead of acrylic
  • Printed subdials that sit flat
  • Case diameter over 38 mm