Men's Patek Philippe watch with automatic movement. Calibre CH28-520 IRM QA 24H, comprising 40 jewels and featuring a column wheel mechanism. 36mm round rose gold case displaying an annual calendar function with date display at the correct position until the next year automatically adjusting. Includes flyback chronograph complication (60-minute counter, 12-hour sub-dial), power reserve indicator showing up to ~55 hours of operation without winding. Black alligator strap band with hand stitching and square scales design, paired with a fixed rose gold bezel set with approximately 3.48 carat total weight baguette diamonds (~26 stones). Ebony black opaline dial accented by luminous gold-tone leaf-style hour markers at the 8 positions along with two additional small baguette diamond markers (~0.23 ct), minute markers around the outer bezel, and central hands also tipped with diamonds (~0.23 ct). Scratch resistant sapphire crystal lens covers the analog dial which displays hours, minutes, seconds via sub-dials (60-minute/12-hour) and includes a day window complication. Water resistance to 30 meters / 100 feet ensures protection against splashes during normal use. Item variations include: 5961R-010 or 5961R