Damasko · Chronographs

Strap for DC 56 Si

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

Lug width20 mm
Case diameter40 mm
ReferenceDC56.si
FamilyChronographs
MovementDamasko caliber 7750 Si hours, minutes, small seconds | date, day | Chronograph
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 Chronographs DC56.si

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Chronographs DC56.si, seen from the bench

The Damasko DC56.si is a 40 mm stainless steel chronograph featuring the manual-wound caliber 7750 Si with 28,800 vph. Counters are positioned at 6-9-12, displaying seconds, tenths of seconds, and minutes respectively. Built from Damasko's long-standing tradition of manufacturing instruments for pilots, divers, and rescue teams, this chronograph prioritizes tactical legibility and mechanical reliability. The case features hard edges and high-contrast black dial with Breguet hands, sapphire crystal with anti-reflective treatment, and a threaded crown for hermetic sealing. Lug width is 20 mm.

Frequently asked questions

What is the lug width of the Damasko Chronographs DC56.si?

The lug width of the Damasko DC56.si is 20 millimetres. This standard measurement grants access to an extensive range of compatible artisan straps, from alligator leather to nylon ripstop NATO variants. To verify the lug width, measure the internal space between the two metal lugs using a digital calliper.

Which strap is recommended for the Damasko Chronographs DC56.si?

For the DC56.si, we recommend an alligator strap with vegetable tanning for formal wear, which reinforces the instrument-like character of the watch, or a nylon ripstop NATO strap for tactical and sports use. A vegetable-tanned calf strap represents an excellent aesthetic and functional compromise between the two extremes.

How do you change the strap on a Damasko Chronographs watch?

To change the strap, you must remove the spring bars that connect the strap to the watch lugs. Use an appropriate tool (a dedicated spring bar removal tool or a thin flathead screwdriver) to gently push the bar and extract the old strap. Align the new strap with the lug holes and reposition the spring bars until they lock securely. If the operation proves difficult, consult a qualified watchmaker.

Can an aftermarket strap be mounted on a Damasko DC56.si?

Absolutely. The Damasko DC56.si is compatible with any artisan strap manufactured for a 20-millimetre lug width. High-quality aftermarket straps, particularly those produced by specialist ateliers, maintain construction standards that guarantee reliability and durability over time.

What is the average lifespan of a leather strap on this model?

A high-quality leather strap, such as alligator or vegetable-tanned calf, has an estimated lifespan of 3–5 years of regular use. Patina and wear will enhance the character of the watch. Factors such as climate, humidity, and frequency of use directly influence longevity. Nylon ripstop NATO straps tend to last longer due to the mechanical resistance of the fibre.

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