I no longer own this watch, but wanted to post this review for others to enjoy! I received this preowned Rolex watch (GMT-Master 16750) on June 1, 2006. This is my first Rolex timepiece. It was purchased from Cayce at http://www.preownedrolex.com. FIRST IMPRESSIONS WOW! What else can I say. This particular watch had been freshly serviced by a Rolex Service Center (RSC) before I received it. It came complete with the original box, COSC tag, GMT booklet, and of course the 1yr Rolex warranty/service receipt. While at the RSC the watch received a new dial, hands, bezel insert, crown, oyster bracelet, acrylic crystal, and a good polish job to the original case. I felt as though I just received a brand new watch even though it's over 20 years old (circa approx 1983). THE DIAL The black Luminova dial is beautiful and easy to read. Each hour marker is outlined in 18k white gold, which is highly reflective and adds depth to the dial by giving the markers a raised appearance. The dial also reads 'Superlative Chronometer, Officially Certified'. This identifies that the movement in this watch was tested and approved as a certified chronometer by the Controle Officiel Suisse des Chronometres (COSC). This assures the buyer that the watch is accurate to -4/+6 seconds/day. My GMT has been extremely accurate. I've owned this watch for 29 days and according to http://www.time.gov it's only gained 13 seconds! This is less than 1/2 second per day. I'm extremely pleased with these results. The four hands (hour, minutes, seconds, 24hr) are also outlined in 18k white gold and are easy to see against the black dial. The hands, as well as the hour markers have a decent lume (glow) making time reading in the dark possible. Rolex isn't known for having the best lume, but it's decent. THE DATE As with many Rolex watches, the GMT-Master has a date feature, therefore the dial reads 'Oyster Perpetual Date' just beneath the Rolex logo. Having the date on the dial is an invaluable tool for me, as I never seem to know what day it is. The date is magnified by the acrylic cyclopse by 21/2X. The 16750 also has the quick-set feature, which enables you to set the date without having to adjust the minutes and hour hands. Modern GMTs don't have a true quick-set like the 16750 has! THE CRYSTAL The GMT-Master 16750 was outfitted with an acrylic crystal. Compared to sapphire, acrylic scratches much easier. I use a polishing cloth to regularly clean the acrylic of smudges and fingerprints - this has worked quite well. I wouldn't recommend using any other materials to clean the acrylic (eg: t-shirt, papertowel, washcloth, etc.) as these will leave fine scratches behind. I also love the raised/thick appearance of the vintage acrylic... they don't come like this anymore! THE 24 HOUR BEZEL You're probably already aware that the GMT 16750 is capable of displaying two different time zones. The 24hr bezel is easy to read and understand. It rotates both in the CW and CCW direction. The 16750 bezel doesn't have a click-spring like modern GMTs. It smoothly rotates instead of clicking as it's being rotated. One feature I really enjoy about the GMT bezel is the ability to 'swap' bezel inserts. Within 15 minutes you can go from a black GMT to a Pepsi (red/blue) GMT! The 16750 didn't come with a red/black option - this color combo hadn't been release yet. THE CROWN As stated in many other GMT reviews, the crown is simply too small. Unless you have small hands unscrewing the crown is a bit inconvenient. Also, the surrounding crown-guards don't make the task any easier. It's certianly not a deal breaker, but it is worth mentioning. THE BRACELET My GMT 16750 came with the stainless steel (SS) Oyster bracelet, which is my personal favorite. It's flexible, comfortable, and very attractive. The clasp is easy to operate and feels solid/strong. It's nice not having to worry about my 'baby' falling off of my wrist. The original Rolex bracelet can be easily removed (yes, there are advantages to having open lugs) and swaped with other bands or straps. WATER RESISTANCE The GMT 16750 is capable of diving to 100 meters/330 feet. Since I live on the Florida coast, it's a must to have a water proof watch. My GMT frequents swimming pools, lakes, and will be used occasionally for snorkeling and other ocean related play. There's not many places I'm not willing to take this watch. FINAL COMMENTS Go buy this watch righ now! Seriously, this is a great timepiece - a Rolex classic. I've been very pleased with this watch over the past month and I plan on wearing this watch for many years to come. I never thought owning a watch could be so rewarding - IT CAN!