Information
Champagne dial, roman numerals.
Quartz movement.
Leather strap.
Size: 41 x 34 mm.
Notes: The Beta 21 caliber was the result of the collaboration between the Centre Electronique Horologer and a consortium of Swiss brands (including Patek Philippe, Omega, Jaeger-LeCoultre, Longines, IWC), representing the most accurate quartz caliber in the world, accurate to 5 seconds per month.