breitling transocean day date breitling - with manufacturer serial numbers<br> - mercury silver dial<br>- day & date calendar<br>- self winding automatic chronometer movement<br>- guaranteed authentic<br>- certificate of authenticity<br>- manufacturer box & manual<br>- polished steel case<br>- brown leather strap<br>- scratch resistant glareproof sapphire crystal<br>- 100 meters / 330 feet water resistant<br>- 43mm = 1 5/8" case, 7" adjustable strap<br>- tang buckle <br>- luminescent hands & markers<br>- screw down crown & back case<br><br>also known as model # a45310 / a4531012 g751 437x