R Factory 115g Counterweight Version .Rolex Cellini Calendar Model Strongly Arrives .Size: 39mm, 12mm .Movement: Equipped with a custom made 3165 integrated movement, featuring stick shaped hour, minute, and second hands along with a date pointer, functions are consistent with the original version .Case: Made of 316L precision synchronized original top grade electroplating and oxidation resistant protection .Dial: Engraved with a radiating pattern technique, providing a strong three dimensional texture .Watch Buckle: Top grade fully wrapped Italian calfskin strap paired with the original K folding clasp