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Each week, we link present a selection of our favorite watches from the pre-owned side of our collection. Captured by our talented in-house photographers, you get a closer look at what makes these watches so special. This week, we have a Rolex GMT-Master II "Lefty" with the green and black bezel, an IWC Mark XVIII, a 1990s-era 38mm Breitling Montbrilliant, a two-tone Cartier Santos, and a Vacheron Constantin Overseas.

Caliber: Breitling Caliber 32Functions: hour, minute, second, date, second time zone (independently setting 24-hour hand/"caller")Diameter: 25.6mmThickness: 4.1mm2Power Reserve: Approx. 42 hoursWinding: Automatic self-winding mechanical, bidirectional link with ball bearingFrequency: 28,800 vphJewels: 21Chronometer Certified: COSC-certified