Paul Hamra and his staff have been fantastic. Extremely professional, friendly, courteous, and very competitive on their service and pricing.
They've serviced my Breitling at a better price and in faster time than what another major store (where I actually purchased it) quoted me. My fellow pilots from my squadron at Yuma also now take their watches to him (he insisted he give them a military discount without us even asking).
Also, he did some work for my Rolex at a very reasonable price....all the while being very responsive and friendly.
If you have a luxury watch and need any service, I highly recommend Hamra Jewelers.
They also have a pretty nice selection of new and estate watches.