Baume & Mercier · Clifton

Strap for Clifton Baumatic Stainless Steel / White / Alligator

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
Reference10398
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 10398

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Clifton 10398, seen from the bench

The Baume & Mercier Clifton 10398 is a stainless steel watch with a 40mm case and 20mm lug width, representing the brand's philosophy of understated elegance and accessible luxury since its founding in 1830. It features the Baume & Mercier BM12-1975A automatic movement with hours, minutes, seconds, and date display visible through a transparent case back, offering 50 meters of water resistance and a scratch-resistant sapphire crystal. The classic proportions and discrete dial tones exemplify the Clifton collection's dedication to pure design without superfluous details.

Frequently asked questions

What is the lug width of the Baume & Mercier Clifton 10398?

The lug width of the Clifton 10398 is 20mm. This dimension is standard for many mid-to-upper-range classics and ensures universal compatibility with specialised watch straps. You can verify it by placing a digital calliper between the two lugs (the metal protrusions on the case that accommodate the strap) from inner point to inner point.

What is the best strap for the Baume & Mercier Clifton 10398?

For the Clifton 10398, we recommend straps in medium brown alligator or fine-grained calf leather. Alligator is the noblest choice: it develops a patina over time and offers superior longevity. Fine-grained calf offers tactile warmth and controlled wear that imparts character. For intense daily wear, vegetable-tanned leather represents an excellent compromise between durability and aesthetics.

How do I change the strap on my Clifton 10398?

The process is straightforward. You will need a spring bar removal tool. Position the tool under the watch's lug, applying gentle pressure to release the spring bar. Once freed, extract the old strap and insert the new one, ensuring the spring bar clicks correctly into the lugs. If you are not experienced, entrust the task to a specialist watchmaker.

Are aftermarket straps compatible with the Clifton 10398?

Yes, all straps with a 20mm lug width are compatible with the Clifton 10398. Milano Straps offers a wide range of artisanal, high-quality straps customisable in measurements, initials and stitching thread. The Casati Milano atelier also creates bespoke straps with personal leather selection and an 18-month warranty.

How long does a leather strap last on the Baume & Mercier Clifton 10398?

Longevity depends on the material and usage. An alligator strap typically lasts 5–7 years with daily wear, improving over time thanks to natural patina. A calf leather strap has a lifespan of 3–4 years, whilst vegetable-tanned leather can reach 4–5 years. Wear is normal and desirable on quality straps, provided it does not compromise functionality. Regular maintenance (cleaning and drying) significantly extends lifespan.

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