There's a incredibly unique double index at 12 o’clock for orientation. At six o’clock, you may have the signature – as the Aquatimer can be found in both tritium or Luminova variants, you’ll see each “T SWISS Designed T” and “SWISS Manufactured” signatures. A Take note about the tritium variations: https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/