Spinnaker Piccard Skeleton places exposed mechanics beneath a towering sapphire dome

The Piccard Skeleton Dust Black makes its crystal as much a spectacle as the movement beneath it. A pronounced sapphire dome rises above the steel case, magnifying the open dial from some angles and distorting its edges from others. Large luminous plots and hands preserve a strong timekeeping outline around the exposed automatic mechanism.

This is a substantial watch: Spinnaker lists a 45 mm diameter, 52 mm lug-to-lug length and 21 mm thickness. The TMI NH70 automatic movement offers 41 hours of reserve, while water resistance is rated to 55 ATM, or 550 metres. Reference SP-5135-11 pairs the dramatic construction with a steel bracelet.