Zenith has introduced a special boutique edition of the Christophe Colomb wristwatch for London boutique Marcus, the Zenith Christophe Colomb Skeleton. Like the original Christophe Colomb timepiece, which was introduced back in 2010, its design is based on a marine chronometer.

By housing the regulating organ and escapement in a self-regulating gyroscopic module, they can guarantee flat positioning and therefore reduce rate variations. Tourbillons fix rate variations based on the average of 4 to 6 positions, and inclined and gyrotourbillons average even more positions, but this is still not as accurate, according to Zenith. Zenith’s new patented 0G system keeps the escapement in a constant horizontal position, and therefore further minimizes rate variations

The movement is still the manually wound calibre Academy 8804, with 45 jewels, a frequency of 36,000 vph (5hz) and a 50-hour power reserve. The case is in platinum with the same 45 mm diameter dimensions as the original.

What has changed from the original Christophe Colomb, though, is that the dial and movement have been skeletonized, so now you can see the plates, bridges and gears. Now, sapphire discs and blued hands display the hours and minutes (12 o’clock), the small seconds (9 o’clock) and the power reserve (3 o’clock).

Limited to 25 pieces, available only at Marcus in London. Black alligator strap. Water-resistance 30 meters.