Atlantic 56555.45.21
| Movement Type | Quartz Moonphase, Ronda R706.1 |
| Case Material | Stainless Steel Yellow Gold PVD |
| Case Thickness | 10.8 mm |
| Case Width | 41 mm |
| Case Material | Stainless Steel Yellow Gold PVD |
| Crystal | Domed Sapphire Crystal |
| Strap Material | Stainless Steel Yellow Gold PVD |
| Water Resistance | 50 meters | 5 bar |