Here we have a 2007 Omega Seamaster Planet Ocean Black 2200.50.00 with a 44mm polished and brushed stainless steel case, characteristic twisted lugs with a lug-to-lug length of 51.5mm, and a case thickness of 14.5mm give the watch an impressive wrist presence. On the right side is a signed screw-down crown that sits recessed into the case for protection and, at 10 o’clock, a manual helium escape valve. The unidirectional bezel has deep knurling sides for extra grip, and a black aluminium dive insert has silver numerals and markings. Sapphire crystal sits above a black dial, an outer minute track has baton indexes filled in lume that sit above the 12, 6 and 9 numerals marking the hours, and at 3 o’clock a colour-matched date window, broad sword hands filled with lume are complemented by an arrow-tipped sweeping second-hand, at 12 o’clock we have the Omega motif “Seamaster Professional” and at 6 o’clock  “CO-Axial Chronometer 600m/2000ft'' is printed underneath. On the reverse, a screw-down case back with a polished Hippocampus in the centre, a seahorse that represents Neptune, the God of the sea; it was conceived by Pierre Borie after seeing a picture of Neptune riding a chariot pulled by seahorses; it is the reason why the seahorses are wearing a bridle, first seen on the Seamaster in 1958. Inside an automatic Omega Cal. 2500, 29 jewels, and an unusual 25,200 beats per hour, the movement is based on the ETA 2892-A2 and was released in 1999, after Omega purchased the patent for the Co-Axial escapement from George Daniels, a renowned English master watchmaker and inventor in 1993. It comes paired with its original 22mm Omega stainless steel brushed stainless steel bracelet secured by an Omega signed push button-release clasp. It will fit up to a 7.15-inch wrist, and the watch comes with its Omega presentation box.