anti reflection 2 types, some watch manufacturers only apply AR on the inside of the sapphire to my knowledge, the speedmaster 3573.50 does this rendering the inside sapphire anti-reflective. Iwc pilot has it on both sides. Rolex does not have AR on their sapphire as far as i can see. I like anti reflective sapphire because when u look at the dial, it is almost transparent, i feel breitling does a good job on this on all their watches i think. Also for the same brand, AR sapphire on both sides may be priced higher too, i might be wrong. Watches with complicated dials should have AR on both sides of the sapphire to enable easier reading imo. This message has been edited by KCKL on 2011-02-24 16:04:23