From Hermès -
Manufacture Hermès H1837 movement
Mechanical self-winding, crafted in Switzerland Diameter: 26mm (11 1⁄2’’’)
Power reserve: 50 hours
Frequency: 28,800 vph (4Hz)
Functions: Hours, minutes, date at 6 o’clock, moon phase between 10 and 11 o’clock
Module: Petite Lune (small moon)
Shape/size: Round, 38 mm in diameter
Material: Stainless steel. “Scattering of diamonds and sapphires” setting. 22 blue sapphires and 10 diamonds.
Crown: Set with 1 diamond
Crystal: Sapphire crystal and case-back with anti-glare treatment Water resistance: 3 bar
Natural white mother-of-pearl dial set with 65 blue sapphires
and 58 diamonds.
Moon-phase indicator with blue background and rhodium-plated decor.
Sapphire blue alligator