Armin Strom · Gravity

Strap for Tourbillon Gravity Water

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

Lug width20 mm
Case diameter43 mm
ReferenceST14-TW.M.50
FamilyGravity
MovementArmin Strom caliber ATM13 hours, minutes, small seconds | tourbillon escapement
Year2013
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 Gravity ST14-TW.M.50

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Gravity ST14-TW.M.50, seen from the bench

The Gravity represents one of Armin Strom's contemporary high-end watch propositions. It is powered by the automatic Calibre ATM13 with tourbillon escapement, hours, minutes and small seconds. The mechanics are visible through the open dial which highlights the tourbillon movement.

Frequently asked questions

What is the lug width of the Armin Strom Gravity ST14-TW.M.50?

The Armin Strom Gravity ST14-TW.M.50 features a lug width of 20mm. This measurement is critical for sourcing a compatible strap and should be verified precisely using a digital calliper positioned between the attachment points on the case.

What is the best strap for the Armin Strom Gravity ST14-TW.M.50?

For a technical timepiece such as the Gravity ST14-TW.M.50, we recommend straps crafted from genuine alligator or vegetable-tanned calf leather. These materials complement the mechanical aesthetic of the tourbillon without visual distraction, maintaining both elegance and functionality. Selection depends on intended use: formal or technical-sportive contexts.

How do you change the strap on the Armin Strom Gravity ST14-TW.M.50?

Strap replacement is accomplished by removing the spring bars that connect the lugs to the case. Use a dedicated tool to compress the internal spring mechanism, gently extract the bar, and replace with the new strap. Exercise caution to avoid scratching the case during this procedure.

Are aftermarket straps compatible with the ST14-TW.M.50?

Yes, bespoke aftermarket straps of 20mm width are entirely compatible with the Armin Strom Gravity ST14-TW.M.50. Milano Straps provides curated selections of superior quality in leather, NATO, and rubber, specifically constructed for this lug width specification.

What is the lifespan of a leather strap for the Armin Strom Gravity ST14-TW.M.50?

A premium leather strap—alligator or vegetable-tanned calf—typically endures 3 to 5 years under regular use conditions. Longevity is contingent upon frequency of wear, exposure to moisture, and maintenance protocols. Periodic professional cleaning and rotation between straps substantially extends functional 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