Rolex
Datejust 31 178248-0087— lug 16mm

The Rolex Datejust 31 178248-0087 features a lug width of 16 millimetres, a specific dimension selected for the ladies' Datejust collection. This non-standard width was engineered by Rolex to maintain ideal stylistic proportions on the 31-millimetre case. To accurately measure the lug width, insert a digital calliper between the case lugs or position the watch face down and measure the internal distance between the lug extremities.

Alligator leather with regular grain texture represents the classical choice par excellence, creating a visual dialogue with the geometric rigour of the yellow gold case. Calf leather offers a sophisticated alternative with a more compact grain and subtle saturation. For casual applications, NATO straps maintain versatility, whilst a technical rubber strap ensures daily practicality during summer months whilst preserving aesthetic value.

Strap replacement requires the removal of the spring bars securing the strap to the lugs, a procedure that must be executed with precision tools to avoid damage to the case lugs. It is advisable to entrust this operation to a qualified professional or to the Casati Milano service, which guarantees impeccable workmanship with complete preservation of the case integrity.

Yes, bespoke artisanal straps are available in the correct 16-millimetre lug width for the Datejust 31. Milano Straps offers a dedicated collection of 16mm straps compatible with this model, available in alligator, calf leather and other premium materials. The Casati Milano bespoke service additionally permits complete customisation of material selection, colour and construction methodology.

A high-quality leather strap (alligator, calf noix, shell cordovan) used daily has an operational lifespan of 3-5 years before replacement becomes necessary due to natural wear. This longevity depends upon intensity of use, leather tanning quality (vegetable tanning versus chrome tanning) and maintenance protocols. Casati Milano offers an 18-month guarantee on manufacturing defects, ensuring maximum investment confidence.