Longines Master Collection Retrograde is a watch line that boasts sleek elegant lines and is a true tribute to the brand. Offering retrograde functions day date seconds 24-hour second time-zone and a self-winding movement and providing 46 hours of power reserve.Stainless Steel Case Material Sapphire glass Round shape case diameter 44mm water resistance 30 meters silver dial colour Indexes Arabic Numerals. 2 years warranty.