3873.50.31
| Brand : | Omega |
| Collection : | Speedmaster |
| Model : | Speedmaster Professional |
| Reference : | 3873.50.31 |
| Complement : | Steel - Aligator Bracelet |
| Year : | |
| Is not commercialised any more | |
| Brand : | Omega |
| Collection : | Speedmaster |
| Model : | Speedmaster Professional |
| Reference : | 3873.50.31 |
| Complement : | Steel - Aligator Bracelet |
| Year : | |
| Is not commercialised any more | |
| List Price : | 4 000 € |
| Diameter : | 42 mm |
| Styles : | Sporty |
| Types : | Hand-winding |
| Calibre : | Omega 1863 |
| Calibre distinction : | COSC certified Chronometer |
| Complication : | Small Seconds 12-Hour Counter 30-Minute Counter Tachymeter Chronograph |
| Case material : | Steel |
| Case peculiarity : | Transparent caseback |
| Shape : | Round |
| Water-resistance : | 50 meters |
| Dial color : | Black |
| Display : | Luminescent hands |
| Indexes : | Baton-type Luminescent |
| Glass : | Sapphire Antireflective coating |
| Strap material : | Alligator leather |
| Strap color : | Black |
| Strap clasp : | Folding buckle |
| + More characteristics : | Movement Power reserve: 48 hours |
| Brand : | Omega |
| Collection : | Speedmaster |
| Model : | Speedmaster Professional |
| Reference : | 3873.50.31 |
| Complement : | Steel - Aligator Bracelet |
| Year : | |
| Is not commercialised any more | |
| List Price : | 4 000 € |
| Diameter : | 42 mm |
| Styles : | Sporty |
| Types : | Hand-winding |
| Calibre : | Omega 1863 |
| Calibre distinction : | COSC certified Chronometer |
| Complication : | Small Seconds 12-Hour Counter 30-Minute Counter Tachymeter Chronograph |
| Case material : | Steel |
| Case peculiarity : | Transparent caseback |
| Shape : | Round |
| Water-resistance : | 50 meters |
| Dial color : | Black |
| Display : | Luminescent hands |
| Indexes : | Baton-type Luminescent |
| Glass : | Sapphire Antireflective coating |
| Strap material : | Alligator leather |
| Strap color : | Black |
| Strap clasp : | Folding buckle |
| More characteristics : | Movement Power reserve: 48 hours |