Vintage Omega Stainless Steel Speedmaster Professional sport watch. The case is stainless steel and measures 42mm in diameter featuring a tachymeter DON bezel and black dial with applied baton lume hour markers. There are three subsidiary chronograph registers present. This Omega is accompanied by a stainless steel Omega bracelet with folding clasp. The end caps are stamped "633". The folding clasp is stamped "STAINLESS STEEL 1171 OMEGA". Condition: (Excellent).