Jacob & Co. Astronomia TOURBILLON BLACK GOLD   Jacob & Co. Epic SF24 Tourbillon Titanium Black DLC   The Epic SF24 Tourbillon is made with an exclusive mechanical movements. It's self-winding, a must-have ease for a travel watch, as well as features a one-minute flying tourbillon, as is the norm at Jacob black & Co. SF   Stands for Split-Flap. Typically the...