There is a wonderfully unique double index at 12 o’clock for orientation. At 6 o’clock, you may have the signature – since the Aquatimer can be found in each tritium or Luminova variants, you’ll see both “T SWISS Produced T” and “SWISS Produced” signatures. A Be aware to the tritium https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/