Baume & Mercier · Hampton

Strap for Hampton Lady Black / 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 diameter28 mm
Reference10021 (aka: MOA10021, M0A10021)
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 10021 (aka: MOA10021, M0A10021)

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Hampton 10021 (aka: MOA10021, M0A10021), seen from the bench

The Baume & Mercier Hampton 10021 is a women's rectangular steel watch with a 27.50 mm case diameter and 18 mm lug width. It features an ETA F03.111 quartz movement and stainless steel case with hours, minutes, seconds, and date display. The design reflects 1930s Art Déco aesthetics with geometric proportions and refined simplicity, part of the Hampton family from the Geneva manufacture.

Frequently asked questions

What is the lug width of the Baume & Mercier Hampton 10021?

The Baume & Mercier Hampton 10021 features a lug width of 18 millimetres. This measurement represents the distance between the two attachment points on the case where the strap passes through and is essential for ensuring compatibility with quality aftermarket straps. It should not be confused with the total case width.

What is the best strap for a Baume & Mercier Hampton 10021?

The ideal strap depends on intended use and personal preference. For maximum elegance, we recommend authentic alligator in medium brown tones or vegetable-tanned calf leather that develops patina over time. For versatility, a silk or cotton NATO strap offers practicality whilst maintaining sophistication. Rubber remains the choice for aquatic environments. All these materials find optimal expression on the rectangular proportions of this model.

How do I change the strap on my Baume & Mercier Hampton 10021?

Changing the strap on the Hampton 10021 requires a spring bar tool to extract the two elastic pins that secure the strap to the lugs. Position the tool in the small slot on the side of each lug, apply gentle pressure towards the case centre to release the pin, and slide off the old strap. Insert the new strap, ensuring both pins click securely into the lugs. If uncertain, entrust the operation to a specialist.

Which aftermarket straps are compatible with the Baume & Mercier Hampton 10021?

Any strap with an 18-millimetre lug width is compatible with your Hampton 10021. Milanostraps offers an extensive range of 18mm straps handcrafted in alligator, vegetable-tanned calf, shell cordovan, NATO ribbons and technical rubber. Each piece can be personalised for length, finishes and details, ensuring perfect adjustment to your wrist.

How long does a leather strap last on a Baume & Mercier Hampton 10021?

The lifespan of a leather strap depends on construction quality and frequency of use. A handcrafted strap in alligator or vegetable-tanned calf lasts approximately 5-7 years of daily wear before requiring replacement, whilst developing increasingly noble patina and character. With occasional maintenance—drying if exposed to moisture, protection from direct heat sources—longevity can extend further. Rubber-finished straps offer greater resistance in challenging environments, though they require replacement more frequently than noble leathers.

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