I have an Omega Seamaster Aqua Terra 231.10.42.21.01.002 Runs great about plus less than 1 sec in 2-3 days. all functions work as expected. Only worn a few times and in beautiful shape. Bought from an authorized dealer and warrantied until July 2017 by Omega SA. This is the first fully anti-magnetic watch by Omega. Watch Description Brand: Omega Ref: 231.10.42.21.01.002 Material: Stainless Steel Crystal(s): Sapphire/Sapphire Movement: 8508 Diameter: 41.5 mm Accessories: Inner/Outer box, cardholder, manual, warranty card, pictogram Condition Movement: Runs strong and all functions work as should Crystal(s): Perfect and clear (on the outside surface) Case: Overall great condition Bezel: Overall great condition Asking 4900 OBO. [email protected] paypal View attachment View attachment