Article continues below advertisementClaudia Schiffer is proving age is just a number.The 55-year-old supermodel marked her birthday with a sun-soaked getaway in Greece and shared the glamorous moment with fans on Instagram.Article continues below advertisementIn the photos, the Love Actually star stunned in a dainty white one-piece with a plunging neckline as she posed by the pool.One shot showed Schiffer lounging on a bed inside a shaded gazebo with her hair flowing loosely over her shoulders. She then paired the look with oversized sunglasses and a long necklace.