There's a beautifully distinctive double index at twelve o’clock for orientation. At 6 o’clock, you might have the signature – as being the Aquatimer are available in equally tritium or Luminova variants, you’ll see both “T SWISS Manufactured T” and “SWISS Built” signatures. A Be aware around the tritium variations: https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/