OMEGA. A FINE STAINLESS STEEL CHRONOGRAPH WRISTWATCH WITH BRACELET SIGNED OMEGA, SPEEDMASTER PROFESSIONAL FROM THE MOON TO MARS MODEL, REF. 3577.50.00, MOVEMENT NO. 77'215'157, CIRCA 2004 Movement: Cal. 1861, manual, 18 jewels, anti-magnetic cap, signed Dial: Signed Case: Screw back, 42 mm. diam., signed With: Stainless steel Omega bracelet with deployant clasp, overall length approximately 180 mm.