Initial time-keeping accuracy 1-2 sec/day consistent with chronometer designation. Long-term accuracy to be determined.. Very stylish watch with design elements reminiscent of the Breguet classic, deserve a good strap. True alligator may be too expensive for a watch in this price range, but a higher grade Napa leather would be preferable to the faux alligator stamped strap provided. I am not a fan of the clasp fastener, but others prefer them. . .to each his own.