detail Ref.:RM 52-01 Case Size: 50.00×42.70mm Case Thickness: 15.95mm Case material: TZP ceramic, carbon nanotubes (skull made of 18K red gold) Movement: Hand-wound, cal. RM052, Tourbillon, approx. 48 hours (±10%) power reserve, 19 jewels Specifications: Hour hand, minute hand