If you haven't come across the wristwatch of your dreams just yet, you must not be looking hard enough. Or perhaps you're looking too hard, as the volume of watches available at retail is nothing short of daunting. Low-end quartz-movement brands such as Fossil introduce hundreds of models each year. Meanwhile, makers of fine watches typically maintain multiple collections--such as sports watches, dress watches and Grand Complications--multiple models within those collections--such as chronographs, pilot watches and day & dates--as well as numerous versions of each model. Want it in stainless steel with a black dial? Rose gold with a white dial? A platinum pavé speckled with diamonds? Chances are it's in the collection--and let's not even get started on all the possible bracelet and strap combinations. Add to all of this the many fashion designers, sports franchises, entertainment conglomerates and consumer goods manufacturers that routinely pump out watche...