The Aquatico Big Pilot Bronze Black is a very comfortable and beautiful vintage style Aviation-style watch with a lovely satinated CuSn8 bronze case. Bronze has the great attribute that it builds up a layer of patina. This is an ongoing process that makes every watch unique. The discoloration is normal with this material. One major benefit is that you can largely bring back your watch in its original condition by using a Cape Cod cloth. 
All the specifications are just right: a mechanical Made in Japan SII NH37 movement with a 24-hour hand, durable sapphire glass with an anti-reflective coating, 300m water resistance, and a hand-made leather strap.

With the 43mm diameter, the watch has a great wrist presence without being too cumbersome. Whether on the ground or in the air or in the sea, the Big Pilot is a gem on your wrist!