Milano Straps
← Certina

ITENDEFRES

SearchCart
Menu

Certina · DS-4

Strap for DS 4 Big Size Silver

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

Lug width

21mm
21 mm strapsAll Certina
Lug width21 mm
Case diameter40 mm
ReferenceC0226101103100
FamilyDS-4
MovementETA caliber F06.111 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

View →

Straps for the DS-4 C0226101103100

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The DS-4 C0226101103100, seen from the bench

The Certina DS-4 Big Size Silver model C0226101103100 features a 40 mm stainless steel 316L case with an integrated bracelet and 21 mm lug width. It houses an ETA caliber F06.111 movement providing hours, minutes, seconds and date function. The sapphire anti-reflective crystal and screw-down crown ensure water resistance to 300 meters, suitable for swimming and snorkeling. This contemporary evolution of the Swiss sports icon combines functional design with essential proportions and certified precision.

Frequently asked questions

What is the lug width of the Certina DS-4 C0226101103100?

The lug width of the Certina DS-4 C0226101103100 is 21 millimetres. This dimension is model-specific and requires compatible straps with maximum constructive tolerance of ±0.5mm. Atelier Casati Milano manufactures bespoke straps that respect this specification with sartorial precision.

Which strap is recommended for the Certina DS-4 C0226101103100?

For the Certina DS-4 C0226101103100, we recommend structured calf leather with vegetable tanning, or alligator if you desire evolving patina over time. Alternative: NATO straps in natural textile or structured rubber. A deployante buckle in stainless steel ensures daily ergonomics. Ideal colours: cognac brown, black, navy blue, bordeaux.

How do you change the strap on a Certina DS-4?

The Certina DS-4 employs standard lugs where the strap is secured via spring bar pins. To change: remove the pins from the case lugs using a spring bar tool or consult a professional watchmaker. Insert the new 21mm strap, align the holes, and reinsert the pins. Verify stability before daily wear.

Is an aftermarket strap compatible with the Certina DS-4 C0226101103100?

Yes, aftermarket straps are compatible provided they respect the 21mm lug width specification. Atelier Casati Milano supplies customisable 21mm straps (leather, NATO, rubber) engineered to constructive standards that ensure aesthetic coherence with the original Certina design.

How long does a leather strap last on a Certina DS-4?

A quality leather strap (structured calf, alligator, shell cordovan) on a Certina DS-4 lasts approximately 3-5 years with daily use, considering vegetable tanning and basic maintenance (avoid prolonged moisture, clean with soft cloth). Vegetable tanning develops natural patina, extending aesthetic value. Rubber or NATO straps maintain structural integrity longer.

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