The Instruments collection has five lines of its own – the Auto, GMT, Diver, Quartz and Chrono. The Auto is one of the more classic models and draws its design from aeronautical instruments. The other lines’ names denote what you can expect from each. The Diver is a diving watch, the GMT features a GMT complication, the Quartz is a quartz timepiece and the Chrono has a chronograph. The large square cases on the Instruments collection are certainly eye-catching, and it’s a great, stylish watch to add to your collection.