There is a splendidly distinctive double index at 12 o’clock for orientation. At six o’clock, you've got the signature – as the Aquatimer are available in both tritium or Luminova variants, you’ll see both equally “T SWISS Designed T” and “SWISS Manufactured” signatures. A Notice about the tritium variations: IWC https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/