Zenith Christophe Colomb Equation Of Time, 45 mm 18kt rose gold case, 21.40 thickness, double folding clasp, black alligator/crocodile leather strap, manual winding movement, transparent case back, fixed bezel,??Gold with hand-crafted guilloch? motif silver-toned dial,?Sapphire dual face anti-reflective coating glass, water resistant to 30m/100ft.