While the tourbillon’s capacity to improve timekeeping by averaging out gravity related errors is impressive, the harmonized revolutions of the twin tourbillons in Speake-Marin’s new Black Magister Vertical Double Tourbillon are a visually arresting fête. The new 46 mm timepiece with an 18K white gold case features two 60-second tourbillons on a black mainplate. A single bridge, hand finished with mirror polished internal bevels supports the escapements. The watch also features a 72-hour power reserve indicator, a day and night indicator, and a sophisticated alligator skin strap.

Functions: Off-set hours and minutes with power reserve and day/night indicators
Movement: SM Caliber SM6, manual wound vertical double tourbillon.
Dial: White enamel
Case: 18K white gold