Tank Américaine watch, medium model, mechanical movement with automatic winding. Yellow gold 750/1000 case, octagonal crown set with a sapphire, silver flinqué dial, blued-steel sword-shaped hands, black alligator leather strap, yellow gold 750/1000 interchangeable deployant buckle, calendar aperture at 6 o’clock. Case dimensions: 41.60 mm x 22.60 mm, thickness: 9.65 mm. Water-resistant up to 3 bar (approx. 30 meters/100 feet)