Hamilton Khaki Aviation Converter Auto 42mm Watch book-appointment Introducing the Grand Seiko Spring

Introducing the Grand Seiko Spring Drive GMT Watch with a striking rock-pattern dial

bi-directional rotating bezel and prominent winding crown

The original Ventura

This classic design has a dial whose silken sunray pattern pays tribute to this heritage

Open caseback showcasing the fine Swiss-made 26-jewel automatic movement

Hamilton Khaki Aviation Converter Auto 42mm Watch book-appointment Introducing the Grand Seiko SpringGet inspired to go higher with every glance at the stunning blue dial of the Khaki Aviation Converter Automatic. Pilots and urban adventurers can make critical calculations and conversions mid flight using its matching blue slide rule bezel, the H 10 automatic movement inside, with its 80 hour power reserve and Nivachron balance spring, ensures precision in any environment. A three hand movement with or without a date function and boasting a superior