MAGNIFICENT! I Bought the new 39mm TUDOR Black Bay 58 GMT | Know This Before You Buy | Automatic Divers Watch Review Bakelite goodness! I picked this reference M7939G1A0NRU up from my local authorised dealer and couldn't be happier! It pays homage to the old Rolex GMT Master watches from yesteryear, which gained the 'Coke' nickname due to the colour of the red and black bezel. Others may call this the 'Caffeine Free' or the 'Iron-Man' Master Chronometer (METAS) certified. Certification by the Swiss Official Chronometer Testing Institute (COSC). Waterproof to 200 m (660 ft) in accordance with ISO standard. Smooth functioning when exposed to a magnetic field of 15,000 gauss and precision following exposure. 65-hour power reserve. Would you buy this watch? Please leave any comments or questions below and follow me on IG. Thanks for checking in :)