As the name suggests , referring to the international designation of Czechoslovak civil aircraft, the modern PRIM OK-A sports watch is inspired by the aviation industry. In this spirit, a completely new case with a screw-down crown has been created, which is massive, but at the same time very comfortable to wear.
The inscription on the OK-A dial is visually different from different angles thanks to the printing technology used . The distinctive luminous indices, legible even in difficult conditions, are reminiscent of aircraft instruments.
The full back cover is dominated by a two-bladed winged propeller, referring to the beginnings of Czechoslovak civil aviation- this symbol adorned the buttons of the pre-war uniforms of CSA employees. The water resistance of the watch has been increased to 10 ATM, making the PRIM OK-A model suitable for wearing even in more demanding conditions.
The watch belongs to the PRIM Automatic series and is equipped with a high-quality Swiss movement ETA 2824-2 with automatic winding. Other components of the watch, such as the case, crown, hands or dial, were manufactured in the New Town manufactory of ELTON watchmaking.