Omega JR1 New Recommendation - Butterfly Series Upgrade Version. The movement model is ETA2824 with a 6-position true calendar and 24-hour star function. It boasts stable quality with a size of 40mm and a thickness of 1.1mm. The case is made of 316L stainless steel with a nano platinum plating technology, showcasing elegance and sophistication. The strap is made of Italian first-layer leather, making it the perfect choice for your adornment. The actual product is even more impressive. We look forward to your appreciation. A perfect gift for yourself or others, embodying high-end quality and unique craftsmanship. Please recognize our exclusive quality.