H. Moser & Cie 1341.0107 Endeavour Perpetual Calendar 1, 1341501007, 18k rose gold case with an 18k rose gold deployant buckle, manual wind H. Moser & Cie caliber HMC 341.501, gray sunburst dial with applied rose gold markers, leaf hands, date at 3 o'clock, the small hand in the center points to the twelve hour markers signaling the month, small seconds at 6 o'clock, power reserve at 9 o'clock, leap year indicator on back, sapphire crystal, display back, water resistant, size 41mm, thickness 11.5mm, Like New with Moser box and Papers dated 2022.