Today, it will be an Omega Chronograph from the 1970s.
(photo courtesy of Antiquorum)
This is a rare OMEGA REF.146.017 DE VILLE CHRONO DATE STEEL. The serial No. is 29141203. Made circa 1970. Fine and very rare, water-resistant, stainless steel wristwatch with round button chronograph pushers, 30-minute register, tachymeter, date, and a stainless steel Omega double deployant clasp. A similar Chronograph sold in 2007 at Antiquorum. Take a look here. A beautiful vintage Omega Chronograph.