This newer OMEGA SPEEDMASTER PROFESSIONAL SPECIAL EDITION is a reference 3577.50. This unused watch measures 42mm. across and is 14.3mm. thick. This newer OMEGA watch is rated to be water resistant to 50 metres. The stainless steel bracelet has a deployment buckle with all links present. The box and all papers (cards) are included. The sapphire crystal protects the exotic and colourful special edition dial. The 1861 caliber manual winding movement boasts a 48 hour power reserve.