The Beaufort Open Heart Calendar Automatic is a fitting tribute to its namesake and inspiration - Sir Francis Beaufort the famed hydrographer, scientist, and officer of the Royal Navy. Powered by a 29 Jewel – self-winding customized automatic movement visible through the exhibition case-back – the Beaufort is a stunningly sophisticated yet practically useful timepiece that is a testament to the skilled watchmaking legacy of the Earnshaw brand.