FM Vanguard Slim Skeleton Watch

"FM Frank Miller" likely refers to a Franck Muller watch, known for complications, innovative designs, and luxurious materials like gold and carbon. The brand's core collections include the Vanguard, known for its sporty and modern look with hand-applied numerals, and the art-deco inspired Long island. Specifications vary greatly by model but often feature automatic or manual-wind in-house calibers, various case materials, and signature features like the Cintree curvex shape.