Two-tone 18kt yellow gold and steel case and bracelet. Silver galvanic chronograph dial, with gold-tone indexes and tachometer. Date displays between 4 and 5 o'clock positions. Scratch resistant anti-reflective sapphire crystal. Case diameter 43.2mm. Hidden folding clasp. Quartz movement. Water resistant at 100 meters (330 feet). Alternate model number 1251K51/6711. Ebel Sportwave 18kt Yellow Gold and Steel Chronograph Mens Watch 1215136