The Ventus Northstar N-6 Azure Blue is a phenomenal watch with a brass case. Brass is somewhat similar to bronze in terms of patina (both are based on copper). This is an ongoing process which makes every watch unique. Discolouration is normal with this material. One major benefit is that you can largely bring back your watch in the original condition by using a Cape Cod cloth.
Under the hood you'll find a reliable automatic, Japanese Seiko SII NH35 movement. The beautiful sandwich dial is protected by a piece of domed sapphire glass with an AR coating on the inside. The 300 meter water resistance ensures the ability to swim and dive with your watch without worries. The diving bezel helps if you do decide to take a plunge to the depths of the ocean.
The watch comes on a comfortable rubber strap, but also comes with an additional leather strap. Comfort is key with the Northstar line as the dimensions (40mm diameter and 45mm lug to lug) ensure a good fit on any wrist, especially with the crown at 4 o'clock. 

SeriousWatches is an authorised dealer of Ventus watches. This watch comes with a 2 year warranty, the Ventus box, a 2 spot watch roll and the warranty card. Worldwide shipping is free.