• Brand: Omega • Model: Seamaster Professional 300M / 1000Ft. Diver Co-Axial Master Chronometer, Ceramic Bezel, In "Excellent" condition. Like New. All functions work perfectly. "Very Classy, Exclusive and Prestigious Model. Striking and Eye-Catching. From Omega's Most Popular Series, Seamaster. The Master of the Seas. A Great Investment." • Reference Number: 210.30.42.20.06.001 • Movement: Automatic, Works perfectly. Impeccable at timing. Tested on Timegrapher. > Omega Master Chronometer Calibre 8800, Certified at the Industry’s Highest Standard by the Swiss Federal Institute of Metrology (METAS) > Power Reserve: 55 Hours > Legendary Co-Axial Escapement > Chronometer (COSC) Certified Movement In order for a watch to put the term Chronometer on its dial, it must pass the Official Swiss Chronometer Testing Institute, namely the COSC. To measure the movement and precision of a watch, COSC places it at different temperatures and inspects it for days under varying conditions. The result should be no more than -4 or +6 seconds of deviation per day. Of course, this is not an easy thing to achieve. So much so that only 3% of the Chronometer watch models produced in Switzerland can get a certificate. > Anti-Magnetic Feature The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss). • Type: Diver • Crystal: Sapphire, Scratch free. In Excellent Condition. • Swiss Made, Fully Original • Case & Bracelet: Stainless Steel • Case Back: Transparent, Very Classy. • Bezel: Blue, Ceramic, Scratch-free. ZrO2 (Zirconium Oxide) • Dial: Blue Grey Wavy Dial , In "Excellent" condition. Spotless. • Very luminious hands and markers • Date Display at 6 o'clock • Case Diameter: 42 mm. (Excl. Crown) • Wrist Size: 18 cm. • Screw-down lockable crown • Crown: Original, Omega signed. • Helium Escape Valve at 10 o’clock "Helium escape valves keep diving watches from getting damaged during saturation diving. Without a valve, these molecules would all try to escape at once during decompression, causing the watch's crystal to break." • Uni-directional Rotating Ceramic Bezel • Folding and Lockable Clasp • Bracelet: Original Omega • Clasp: Original Omega • All functions work perfectly. • The watch is in "Excellent" condition. There is no scratch on the glass. It is as seen in the photos. Very Classy, Exclusive and Prestigious model. • Shipping: FREE • Registered and Insured Shipping with Tracking Code in 1-3 days.