Baume & Mercier · Hampton

Strap for Hampton Classic Lady Bracelet

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter20 mm
Reference8813 (aka: MOA8813, MOA08813, M0A8813, M0A08813)
FamilyHampton
MovementETA caliber F03.111 hours, minutes, seconds | date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Hampton 8813 (aka: MOA8813, MOA08813, M0A8813, M0A08813)

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Hampton 8813 (aka: MOA8813, MOA08813, M0A8813, M0A08813), seen from the bench

The Baume & Mercier Hampton Classic Lady Bracelet model 8813 is a rectangular dress watch featuring a stainless steel case measuring 20.40mm in width. It houses an ETA caliber F03.111 quartz movement with hours, minutes, seconds and date window, protected by an anti-reflective sapphire crystal. The watch requires an 18mm lug width strap. The Hampton exemplifies Art Deco heritage in modern construction, balancing proportion and minimalist design.

Frequently asked questions

What is the correct lug width for the Baume & Mercier Hampton 8813?

The lug width of the Baume & Mercier Hampton 8813 is precisely 18mm. This exact measurement is essential to maintain the elegant proportions of the case. Before purchasing a strap, verify by measuring the distance between the attachment holes on the case—it must correspond exactly to 18mm.

Which strap materials are recommended for the Hampton 8813?

For the Hampton 8813, we recommend vegetable-tanned alligator or calf leather straps for formal wear, shell cordovan if you desire unique patina development over time, or textured rubber or NATO fabric for a more contemporary approach. Your choice depends on usage: ceremonial occasions suit fine leathers, daily wear benefits from rubber or canvas.

How do I change the strap on the Hampton 8813 without damaging the case?

The lugs of the Hampton 8813 are integrated into the case with restricted clearances. We recommend using a spring bar tool with a fine tip. Gently remove the old strap by acting on one lug at a time, then insert the new strap ensuring the passant is correctly aligned. Avoid forcing, which could scratch the steel.

Is an aftermarket strap in 18mm size compatible with the Hampton 8813?

Yes, any strap with 18mm lugs is compatible. However, thickness verification is critical: overly rigid straps make insertion difficult, whilst excessively thin ones create visual play between strap and lug. Milano Straps manufactures aftermarket straps tailored to the precise tolerances of the 8813, guaranteeing perfect compatibility.

What is the average lifespan of a natural leather strap for the Hampton 8813?

A quality vegetable-tanned leather strap lasts 3–5 years with regular daily wear, depending on humidity exposure, perspiration and sunlight. Leather ages and develops characteristic patina; this is not a defect but aesthetic evolution. Regular maintenance (gentle cleaning, annual conditioning) extends lifespan and accelerates personal patina formation.

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.

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