Certina · DS-2

Strap for DS-2 Yellow

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter40 mm
ReferenceC0244101105101
FamilyDS-2
MovementETA caliber F06.411 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 DS-2 C0244101105101

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The DS-2 C0244101105101, seen from the bench

The Certina DS-2 reference C0244101105101 is equipped with the ETA F06.411 caliber with hour, minute, second and date indication. The watch features 21mm lugs and is part of the DS collection characterized by shock and water resistance. The quartz movement guarantees precision in time indication with essential functions for daily use.

Frequently asked questions

What is the exact lug width of the Certina DS-2 C0244101105101?

The lug width (or strap width) of the Certina DS-2 C0244101105101 is 21mm. This measurement refers to the distance between the two lugs (or horns) of the case—the attachment points where the strap connects via spring bars. Any compatible strap must measure exactly 21mm at its terminal sections (end links).

What is the best type of strap for the Certina DS-2?

Choice depends on context: alligator or vegetable-tanned calf leather in dark brown or grey smoke suits formal and office wear, developing natural patina over time; NATO canvas or FKM rubber serves sport and everyday casual use; mid-grain calf offers versatility and colour-matching flexibility. All materials should be water-resistant and easy to clean.

How do I change the strap on my Certina DS-2?

Use a spring bar tool or fine-blade screwdriver to press downward against the underside of each spring bar. As the bar compresses, slide the strap away from the lug. Repeat on the opposite side. To install a new strap, align its terminal slots with the lugs and press the spring bar inward until it clicks into place. The entire operation takes less than one minute.

Which aftermarket straps are compatible with the Certina DS-2 C0244101105101?

Any strap featuring a 21mm lug width is compatible. MilanoStraps stocks a dedicated collection for this size: Italian vegetable-tanned leather, Cordura NATO, sport-grade FKM rubber, and premium deployant clasps in solid stainless steel. Avoid generic "universal" straps, which may introduce gaps between the lug and strap.

How long does a natural leather strap last on a sport watch like the DS-2?

Vegetable-tanned leather typically lasts 3–5 years with standard care (occasional cleaning, avoiding prolonged water exposure). FKM rubber remains serviceable for 5–7 years before elasticity degrades. High-density canvas NATO straps commonly exceed 10 years. Premature spring bar failure (rather than strap degradation) is rare on reputable timepieces and usually indicates manufacturing defect.

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