| Brand | Nomos |
| Name | Ahoi Datum |
| Reference | 551 |
| Diameter | 40 mm |
| Material | Stainless Steel Case, Textile Strap |
| Features | Date, Small Seconds,
Water resistant ≥ 600 ft |
| Movement | Automatic Self-Winding Mechanical
Power Reserve 42 hours |
| |
| Price | About $4,737
France - about €3,420
|
