ABYSS GMT 41mm ABYSS AB54T004 The Abyss line laid some foundations of Hysek style. From the sporty Chronograph to three-hand, via to the tourbillon of Haute Horlogerie, Abyss has continued to evolve, embodying the versatility and flexibility of the Hysek's Manufacture. The Abyss line has also focused on several important developments in-house, such as the swivelling horns system... View