Baume & Mercier · Clifton

Strap for Clifton Baumatic Stainless Steel / White / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference10400
FamilyClifton
MovementBaume & Mercier caliber BM12-1975A hours, minutes, seconds | date
Year2018
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 Clifton 10400

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Clifton 10400, seen from the bench

The Clifton reference 10400 by Baume & Mercier is powered by the automatic caliber BM12-1975A with hour, minute, second and date indication. The Clifton collection represents the brand's dress watch line, characterized by a classic and elegant design. The movement offers the essential functions for daily use in a traditional three-hand format with date.

Frequently asked questions

What is the exact lug width of the Baume & Mercier Clifton 10400?

The lug width of the Clifton 10400 is 20 millimetres. This measurement is standard across the Clifton family and should be measured perpendicularly from the inside of one lug to the inside of the other, excluding any decorative protrusions. Precise measurement is essential to ensure physical compatibility with an aftermarket strap.

Which strap is most appropriate for the Baume & Mercier Clifton 10400?

Fine-grained alligator leather represents the most coherent choice, given its regular texture that amplifies the Clifton's understated elegance. Alternatively, vegetable-tanned calf leather offers a patina that develops naturally over time, acquiring material character. Both materials respect the watchmaker's original philosophy, unlike bolder options that would create visual discord.

How do you change the strap on a Baume & Mercier Clifton 10400?

The Clifton 10400 features standard spring-bar lugs. To remove the original strap, use a dedicated tool to compress the spring mechanism from the inside, freeing the lug. Once removed, the new strap is inserted by sliding the attachment into the seat until you hear a click. It is advisable to perform this operation on a soft surface to prevent scratching the case.

Is an aftermarket 20mm strap guaranteed to be compatible with the Clifton 10400?

A strap marketed as 20mm is physically compatible with the Clifton 10400's lugs. However, stylistic compatibility depends on the material and colour choice: alligator, calf, and structured rubber maintain the design equilibrium, whilst synthetic materials or saturated colours may generate visual discord. Physical compatibility does not automatically imply aesthetic coherence with the original design.

How long does a leather strap last on the Clifton 10400?

A quality alligator or vegetable-tanned calf strap maintains full functionality for 3-4 years of daily wear, developing natural patina and soft texture that reflects the history of use. Actual lifespan depends on sun exposure, skin moisture and cleaning frequency. A rubber strap guarantees longer longevity (5-6 years) as it resists oxidation and moisture absorption, though gradually losing elasticity. Periodic maintenance with specific creams significantly extends the useful life of any material.

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