Formex · Essence 39 mm

Strap for Formex Essence 39 mm

The Formex Essence 39 mm takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width20 mm
Case diameter39 mm
FamilyEssence 39 mm
MovementSellita SW200-2 Power+ automatic COSC
Year2026
CaseStainless Steel 316L with contenitore in titanium grado 2
Water resistance100

Spring bar

Swiss Standard universal spring bars

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

Standard spring bar · length 20 mm · Ø 1.8 mm double flange · industry standard, no brand part number

Formex Essence 39 mm — watch

What I'm asked about the Formex Essence 39 mm

What strap size does the Formex Essence 39 mm take?

The Formex Essence 39 mm needs 20 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Formex Essence 39 mm be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Formex Essence 39 mm?

Yes, in 20 mm leather. On a 39 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Formex Essence 39 mm?

A 20 mm calf strap, for every day. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

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

The atelier's website: casatimilano.com