2. The TT4 from Haimov Watches ($9,000) is set with 2.17 carats of VS1 blue diamonds. The watch is water-resistant to 100 meters, is crafted in stainless steel with a rubber case and strap, and houses a Swiss automatic movement. Haimov Jewelers, 33 NE First St., Miami; haimovwatches.com

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