OM3  Omega Constellation Quadra Chronograph. Reference 1841.73.31. Watch measures a cool 28x34mm and is made from steel. Swiss high precision quartz movement by ETA. Sapphire crystal on the front and a closed case back. Mother of Pearl dial with 4 diamonds. Waterproof 3ATM or 30 meters (NOT suitable for swimming!). Functions are hours, minutes, sub seconds and chronograph. This watch is fitted with the original red crocodile leather strap (good but must be replaced in the near future) with steel folding clasp. Naturally this watch is complete with the original box and papers dated August 2005. Please be aware that this watch has just been serviced by our official Omega certified watchmaker. Super elegant feminine watch makes a great gift!