I struggle a bit when I bought my Panerai watch because I feel their design between models are very similar.
Except when you decide Luminor vs Radiomir then it's quite different because of the shape. When you go into the individual categories say Luminor you need to determine which of this feature is important to you:
- With Seconds or Without Seconds
- Date or without date
- Sandwich Dial or Non Sandwich Dial
- Exposed Caseback or Unexposed
- Power Reserve 56h, 3day, 8 day or 10 day
- Steel, Ceramic, Composite case material
- In house or ETA Based Movement
This helped me narrow my options easier. Otherwise on facial look they look very similar to me.