Omega De Ville Prestige Co-Axial Chronometer 39.5 mm（ 424.23.40.20.13.001）/WHP033183

"39.5mm brown color stainless steel
Automatic mechanical" 

Luxurious material combination: A 39.5-millimeter stainless steel case paired with a 18K rose gold bezel, a brown crocodile leather strap and rose gold hands/minute marks create a warm texture, balancing classic and elegance; the back of the watch features the "Chronos" pattern, showcasing the brand's craftsmanship details.
Unique dial design: The chestnut sun-grained dial ( "sun-brushed chestnut dial") presents delicate light and shadow through the polishing process, with Roman numerals and dot hour markers interlaced. The 3 o'clock position calendar window is practical and visually balanced.
Coaxial escapement and official Swiss Chronometer Certification: Equipped with the Omega 2500 automatic mechanical movement, the signature coaxial escapement system reduces friction and improves accuracy; it has passed the Swiss Official Chronometer Certification (COSC), with a daily time error of -4/+6 seconds, and a power reserve of approximately 48 hours.
Details and practicality: The sapphire glass watch crystal is scratch-resistant and wear-resistant, with 50-meter water resistance to meet daily protection needs. The stainless steel folding clasp ensures comfortable wearing, and the overall design is simple and elegant, suitable for business, formal occasions and daily wear.