Damasko · Three-hand Models

Strap for DS30

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

Lug width20 mm
Case diameter39 mm
ReferenceDS30
FamilyThree-hand Models
MovementETA caliber 2836-2 hours, minutes, seconds | date, day
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 Three-hand Models DS30

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Three-hand Models DS30, seen from the bench

The Damasko DS30 belongs to the brand's Three-hand Models collection. The watch is powered by the ETA 2836-2 automatic movement with indications for hours, minutes, seconds, date and day of the week. The model features 20mm lugs for the strap.

Frequently asked questions

What is the lug width of the Damasko DS30?

The Damasko DS30 features a lug width of 20mm, measured between the two spring bar holes. This is the dimension you must identify when selecting an aftermarket strap. To measure correctly, position a digital calliper or flexible ruler from one hole to the other in a straight line, without angles.

Which strap is best for the Damasko DS30?

The best choice depends on daily use and aesthetic preference. For a classic selection, we recommend alligator in brown or black: the characteristic grain reinforces the instrument's professional DNA. If you prefer something more robust with evolving patina, vegetable-tanned calf leather in chestnut ages beautifully. For saline or maritime environments, FKM rubber offers the most practical and durable solution.

How do I change the strap on the DS30?

Remove the existing strap using a spring bar tool to compress the internal spring of the lug. Once extended, slide the strap out of the lug passage. Align the new strap holes with the lugs, reinsert the spring bar into the hole, ensuring it is fully seated. Never force: the spring bar must not protrude from the sides.

Can I use an aftermarket strap on this model?

Yes, provided it is sized for 20mm lugs. Always verify that the strap passage (the part embracing the lug) is exactly 20mm wide, and that thickness is compatible with the Damasko case geometry. Overly thick straps cause friction; too thin straps generate oscillation. We recommend testing first with certified artisanal models.

How long does a leather strap last on a watch like the DS30?

Durability depends on tanning and material. High-quality alligator or shell cordovan, with daily use and routine maintenance (cleaning, annual conditioning), retains structural integrity for 8-12 years. Vegetable-tanned calf, more porous, begins showing patina after 2-3 years but remains functional for 10+ years if not subjected to excessive mechanical stress. FKM rubber has indefinite durability, barring chemical degradation in extremely hot environments.

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