Blancpain · L-Evolution

Strap for L-Evolution Réveil Grande Date 8 Jours Red Gold

Takes 23 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width23 mm
Case diameter44 mm
Reference8850-36B30-53B
FamilyL-Evolution
MovementBlancpain caliber 6938 Hours, Minutes, Seconds | Big Date
CaseRed Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The L-Evolution 8850-36B30-53B, seen from the bench

The Blancpain L-Evolution reference 8850-36B30-53B is equipped with the in-house caliber 6938 with hour, minute, second and big date indications. The watch features 23mm lugs and an automatic movement with essential functions. The L-Evolution collection represents the brand's contemporary approach to traditional watchmaking.

Frequently asked questions

What is the lug width of the Blancpain L-Evolution 8850-36B30-53B?

The lug width of this model is 23mm, representing the internal span between attachment pins. This generous measurement by contemporary standards was deliberately engineered to visually balance the 43.50mm red gold case and requires custom-fitted or specifically dimensioned straps. Always measure between the internal anchor points of your previous strap using a ruler to guarantee complete compatibility.

Which strap is best for the Blancpain L-Evolution 8850-36B30-53B?

The optimal choice depends on intended usage. Natural or dark brown alligator represents the highest lineage, with texture dialogue that complements case geometry. Shell cordovan develops an evolutionary patina over time, transforming across months. Vegetable-tanned calf offers a contemporary approach whilst maintaining natural development without shell intensity. A silk or cotton NATO provides informal versatility. Rubber is incompatible due to material incoherence with rose gold.

How do I change the strap on my Blancpain L-Evolution 8850-36B30-53B?

The strap of a Blancpain with pin attachments is removable via a spring bar remover tool: insert the flat end into the lateral groove of the pin, compress inward and lever vertically until the pin exits its housing. Repeat on the opposite side. When installing the new strap, align the pin with the attachment holes and press the strap inward until the pin clicks into position. Always verify secure attachment before wearing the watch.

Can I use an aftermarket strap with 23mm lug width?

Yes, but with constructive attention. Any strap with 23mm lug width is dimensionally compatible, though construction quality varies significantly. Select straps from artisans specialising in bespoke craftsmanship: the lug must be internally reinforced with paper or stratified leather to prevent bending, and passants positioned so the strap wraps the wrist with coherence. Milano Straps curates a selection of 23mm straps constructed to manufacturing standards, with 18-month warranty against production defects.

How long does a leather strap last on the wrist?

Lifespan depends on material and usage. An alligator strap with industrial chrome tanning lasts approximately 3-5 years with daily wear, developing a patina that communicates history. Shell cordovan, if treated with natural wax, can endure 5-7 years and improve over time. Vegetable-tanned calf exhibits similar durability but develops patina faster. Factors affecting longevity include direct heat exposure, perspiration (which accelerates ageing) and chronic humidity. To extend lifespan, gently brush the strap monthly with a soft brush and apply natural wax treatment every 6-8 months.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only