Omega Seamaster Diver 300M Co-Axial Chronometer 41 mm（ 212.30.41.20.03.001）/WHP036872

"41mm blue dial, stainless steel
Automatic mechanical" 

Professional diving performance: 300 meters water resistance, equipped with a blue ceramic one-way rotating bezel (scratch-resistant, wear-resistant and color-stable), a helium exhaust valve at the 10 o'clock position to meet the pressure balance requirements during professional diving; 41mm stainless steel case shell is sturdy and durable, suitable for various wrist sizes.
Coaxial movement and precise certification: Equipped with Omega 2500 automatic mechanical movement, the signature coaxial escapement system reduces friction and lowers maintenance frequency; Certified by Swiss Official Chronometer (COSC), the daily time error is controlled within -4/+6 seconds, with a power reserve of approximately 48 hours.
Classic sport design: Blue dial with white luminous circular hour markers and arrow hands (coated with Super-LumiNova night light coating), the 3 o'clock position calendar window is practical; Stainless steel bracelet with a folding clasp, balancing comfort and sport style, with scratch-resistant and wear-resistant sapphire glass watch crystal.
Brand heritage and after-sales guarantee: The Seamaster series pays tribute to Omega's marine legend, with a sea horse emblem embossed on the back; offers 5-year global warranty, the movement design reduces maintenance frequency, making daily use more convenient.