Tourbillon-Only Purnell Debuts Microfiber-based Composite Case

Purnell, the watch brand that only produces tourbillon-equiped watches, has revealed a new proprietary case material made with microfibres that promises a tougher, lightweight alternative to ceramic.The Swiss-made WPM (or White Purnell Microfibre) composite is rolled out on the 48mm Escape I Primo, a unique piece made from four blocks of the new material, which also houses the brand's new CP11 movement.WPM is made using vacuum injection moulding and boasts a uniform, off-white finish once polish...