Limited Edition of 99 Pieces. Corum Watch Heritage LAB 01 Limited Edition Z410/03861. Corum watches has opted for an openworked dial which allows for the CO 410 skeleton calibre that fits snugly in the case to be admired. The dial, reduced to its simplest expression, comes in grey anthracite enhanced with either red or white, depending on the version. Enthusiasts will also note the micro-rotor, visible from the dial side, featuring a contemporary spiral finish to accentuate the speed effect when it begins to rotate.