B1237 White 1200 – Gold 1250

3K: A new collection/series featuring three functions in one – Patek Philippe’s new series CUBITUS 5821 watch, the Nautilus. 1️⃣ Movement: Features a customized 9015 modified Cal.26-330 SC fully automatic winding movement. 2️⃣ Strap: Customized ergonomic strap for 316L, with a new clasp design. 3️⃣ Case: The size of 45 (excluding the crown) equals the diagonal length of the case (i.e., from 10 to 4 points). Since the case is roughly square-shaped, the width at the top and bottom is less than this value. Therefore, its visual appearance is comparable to that of the classic model 5711. Following 5711, another classic style has been created perfectly.