Clifton Baumatic styles, like this Model having a gradient green dial, are distinguished from their non-Baumatic predecessors via the crosshairs motif in the center from the dial that represents their COSC chronometer certification. The motion’s most notable attribute, its prolonged 5-day energy reserve, is also called out on the dial. https://www.jowissa.com/fr/pages/faq/what-is-a-tachymeter-for-and-how-to-use-it