Formex · Essence

Strap for Essence Automatic Blue / Calf

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter43 mm
Reference0330.1.7331.722
FamilyEssence
MovementETA caliber 2824-2 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 Essence 0330.1.7331.722

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Essence 0330.1.7331.722, seen from the bench

The Formex Essence Automatic Blue model 0330.1.7331.722 is a 43mm stainless steel watch representing contemporary independent Swiss watchmaking. It features the ETA caliber 2824-2 automatic movement with approximately 38 hours of power reserve, sapphire crystal with anti-reflective coating, and transparent caseback. The watch has a 22mm lug width, dial with hours, minutes, seconds, and date window. The brushed stainless steel case combines functional design with authentic proportions, designed for everyday wear and recreational activities with appropriate water resistance.

Frequently asked questions

What is the lug width of the Formex Essence 0330.1.7331.722?

The Formex Essence 0330.1.7331.722 features 22mm lugs, the historical standard for watches with cases between 40 and 44mm. This width ensures perfect balance between case and wrist, with no binding or looseness.

Which strap do you recommend for the Formex Essence 0330.1.7331.722?

For this technical timepiece, we recommend Tuscan Leather with vegetable tanning in Moro colour, which develops a noble patina over time and pairs naturally with stainless steel. Alternatively, natural alligator offers classical elegance, whilst NATO straps provide maximum practicality.

How do I change the strap on the Formex Essence 0330.1.7331.722?

The strap is changed by removing the spring bars using a dedicated tool called a spring bar tool. Position the tool in the small slot beneath the lug, push gently to compress the spring, and extract the pin. Repeat on the opposite side and insert the new strap following the reverse procedure.

Is the strap truly compatible with the Formex Essence 0330.1.7331.722?

Yes. All our 22mm straps are compatible with the Formex Essence 0330.1.7331.722, as the lug width is precisely 22mm. We recommend measuring your lugs with a calliper before ordering to confirm the exact dimension.

How long does a leather strap last on the Formex Essence 0330.1.7331.722?

A high-quality vegetable-tanned leather strap typically lasts 4-7 years with daily use. Durability depends on sun exposure, humidity, perspiration and maintenance frequency. Regular care with specific creams significantly extends the material's 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.

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