The Armin Strom Gravity Date was introduced in 2013. It features a self-winding movement with tourbillon escapement; the micro-rotor providing powering it can be seen through the open-worked dial.The reference ST14-TW.M.50 Tourbillon Gravity ‘Earth’ features a stainless steel case with black PVD coating. The off-center dial ring is done in black.
