ZENITH Chronomaster Original El Primero 3600 Automatic Chronograph 38mm Watch EN_fashion-jewellery • See-through case back

• See-through case back

But you don’t need Air Force credentials to appreciate their bold design

broke Babe Ruth's home-run record in 1974

01 carats in round diamonds

The round Montblanc Extreme 2

ZENITH Chronomaster Original El Primero 3600 Automatic Chronograph 38mm Watch EN_fashion-jewellery • See-through case backThe CHRONOMASTER Original E commerce Edition is crafted in a 38mm steel case in the same proportions as the A386, paired with a tri colour dial with its most extensive use of the three iconic shades of grey and blue . Powered by the El Primero 3600 automatic high frequency chronograph movement with 1 10th of a second chronograph function and a power reserve of 60 hours.