The Cartier Ballon Bleu de Cartier Silver Dial Men's Watch with Model Number wgbb0039 is a classic timepiece featuring an authentic design. Key features include: Blue hands, black Roman numeral hour markers, minute markers around the inner rim on a silver dial, automatic movement powered by Caliber 1847 MC, three-hand display showing hours, minutes and seconds, date function, round case shape with dimensions of 40mm diameter and 12.4mm thickness, solid case back, bezel or crown finished in fluted style set with a sapphire cabochon, scratch-resistant sapphire crystal face, water resistance up to 30 meters (approximately 100 feet), wristband crafted from 18K rose gold, and comes with a two-year WatchMaxx warranty.