Case in grade 5 titanium, 42 mm diameter, 14.50 mm height, sapphire crystal with anti-reflective coating on both sides, case back with sapphire crystal, water-resistant to 50 metres. Mechanical self-winding EK-MVTWTA01World Time & Alarm movement. Concepto base calibre modified and personalised for Edouard Koehn, entirely manufactured in La Chaux-de-Fonds, Switzerland, double barrel, automatic winding of the watch and alarm functions. 31 jewels, 28,800 vibrations per hour (4 Hz), oscillating weight mounted on ceramic ball bearings, 48-hour power reserve. Ice Blue dial, applied indexes with luminescent dots (superluminova), black matte central disc. Alpha type luminescent hands (superluminova). Black colour calf leather strap, folding clasp. Functions: Hours, minutes, seconds, Universal Time by central 24-hour disc, Alarm by hand.