Rolex
Day-Date 36 128345RBR-0030— lug 20mm

The lug width of the Day-Date 36 128345RBR-0030 is precisely 20 millimetres. This is the standard dimension for this model and ensures visual balance between the compact case and the strap. Measuring it correctly is essential: position a digital calliper inside the lug, between the horizontal pins, without deforming the metal.

For the 128345RBR-0030 in Everose Gold, alligator is the classic choice par excellence: the regular grain and subtle texture pair perfectly with the chromatic evolution of rose gold. Alternatively, vegetable-tanned calf offers daily comfort and characteristic ageing, whilst shell cordovan represents a radical choice for those seeking a unique and unrepeatable patina over time.

The strap on the 128345RBR-0030 is changed by extracting the horizontal pins (the axes around which the strap rotates) using a dedicated tool or a small hammer and stainless steel punch. It is recommended to protect the case during the operation with paper or soft cloth. Atelier Casati Milano offers the strap-changing service by appointment, ensuring correct installation without damage to the case.

Yes, provided the lug width is exactly 20 millimetres and the construction respects the original Rolex pins. Many high-quality artisanal straps, such as those from Casati Milano, are specifically made to this dimension and guarantee total compatibility. It is essential to verify technical specifications before purchase to avoid instability or loosening.

A quality leather strap on a Day-Date 36 worn daily has an average lifespan of 3-5 years, depending on the tanning method (vegetable tanning tends to last longer than chromium tanning). Occasional or seasonal use extends durability to 7-10 years. Regular maintenance – cleaning with a soft cloth, avoiding excessive moisture – preserves the leather's integrity and slows ageing.