R Factory 115g Counterweight Edition .Rolex Cellini Calendar Model Strongly Arrives .Size: 39mm x 12mm .Movement: Equipped with a customized 3165 integrated movement, featuring stick style hour, minute, and calendar hands; functions are consistent with the original model .Case: 316L precision matching original top grade electroplating and anti oxidation protection .Dial: Engraved with a radiant pattern technique, offering a strong three dimensional texture .Strap Buckle: Top grade fully edged craftsmanship with Italian calf leather strap paired with original K folding clasp