Louis Erard RegulatorPower
| Brand | Louis Erard |
| Name | RegulatorPower |
| Reference | 54 209 AS 12 |
| Diameter | 42 mm |
| Material | Stainless Steel Case, Rubber Strap |
| Features | No date, Power Reserve Indicator, Small Seconds, Water resistant to 100 ft, Regulator |
| Movement | Manual Mechanical |
| Price | About $3,172 France - about €2,290 |
