Strap for Rolex Day-Date 36 1850 Masterpiece/Tridor

The Rolex Day-Date 36 reference 1850 features 20 mm lugs. This measurement is consistent across the entire Day-Date 36 family produced during the 1970s. To correctly fit an aftermarket strap, ensure the end width is 20 mm with straight ends, compatible with the parallel lug geometry of this reference.

For the Day-Date 36 ref. 1850 in yellow gold, a wide-grain alligator strap in brown or tobacco is the most coherent choice with the presidential character of the piece. On a white gold case, black patent alligator delivers a sharp formal contrast. For everyday wear, vegetable-tanned calfskin develops a natural patina over time, enhancing the vintage appeal. A deployant clasp in precious metal completes the combination with both practicality and security.

To replace the strap on the Day-Date 36 1850, a fine-tipped springbar tool is required. The vintage Day-Date 36 lugs accommodate 20 mm springbars. Insert the tool tip into the side notch of the lug, compress the springbar and slide the strap free. Repeat on the other side. Fitting the new strap is the reverse process. It is advisable to work on a soft surface to avoid scratching the gold case.

Yes, the aftermarket offers a wide range of 20 mm straps compatible with the Rolex Day-Date 36 1850. It is essential to choose straps with straight ends (not curved) to ensure correct seating within the lugs. Milanostraps.it offers handcrafted straps in leather, alligator, NATO and rubber, made to order, with the option to select the material and buckle best suited to the dial and case of your specific example.

The lifespan of a leather strap depends on the material, care and daily use. A high-quality alligator strap, properly maintained and rotated with other straps, can last between 3 and 7 years while retaining its structural and aesthetic integrity. Vegetable-tanned calfskin tends to develop a pleasing patina with wear. It is recommended to avoid prolonged contact with water and perspiration, to dry the strap after use and to apply a dedicated leather conditioner periodically.