Sinn · Ladies Watches

Strap for Ladies Watches 243 Ti Mother-of-pearl W

Takes 14 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width14 mm
Case diameter23 mm
Reference243.011
FamilyLadies Watches
MovementETA caliber 2671 Hours, Minutes, Seconds | Date
CaseTitanium

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Ladies Watches 243.011

Selected for the 14 mm lug width · workshop selection

All 14 mm straps →

The Ladies Watches 243.011, seen from the bench

The Sinn Ladies Watches 243.011 is a women's watch with a 22.5mm titanium case and 14mm lug width, featuring a Swiss ETA 2671 movement with date function and 28,800 beats per hour. The titanium case offers 200 meters water resistance and weighs 40% less than stainless steel, with natural patina development over time. The case thickness is under 10mm, enabling comfortable wear under long sleeves, and the screw-down crown maintains seal integrity at depth.

Frequently asked questions

What is the exact lug width of the Sinn Ladies Watches 243.011?

The Sinn Ladies Watches 243.011 features a lug width of 14mm. This measurement is taken on the interior face of the lug pins using a digital calliper, avoiding contact with the case. A tolerance of ±0.2mm is acceptable for strap installation, whilst larger deviations cause excessive play or fitting defects.

Which strap is most suitable for the Sinn Ladies Watches 243.011?

The ideal strap depends on intended use: for conservative contexts, alligator in vegetable-tanned leather with a cognac patina ensures evolution parallel to the ageing titanium case. For professional or aquatic environments, NATO in polyamide or FKM rubber offer superior tactical reliability. Shell cordovan in vegetable tan represents the optimal aesthetic synthesis, with a titanium <a href="/pages/termine-glossario/deployante">deployante</a> for perfect matching.

How do I change the strap on the 243.011 without damaging the case?

Position the watch on a watchmaker pad or soft surface. Using a spring bar tool, gently press the pin inward against the case to create clearance. Extract the pin from the hole, then remove the worn strap. Insert the new strap by seating one lug end in the hole first, then compress the pin with the spring bar tool until it clicks into the seat. Repeat on the opposite end. Verify visual alignment between strap and case: no lateral play should exist.

Are aftermarket straps compatible with the 243.011?

Yes, provided the lug width is precisely 14mm. Milano Straps straps feature stainless steel or titanium attachment lugs, guaranteeing manufacturing tolerances below ±0.1mm. We advise against budget universal-fit straps under £5, as pin quality is often poor and causes micro-slippage during wear.

What is the average lifespan of a leather strap for the 243.011?

A handcrafted vegetable-tanned leather strap fitted to a 14mm lug width has a service life of 18–36 months in daily wear, depending on moisture exposure, perspiration, and cleaning frequency. FKM rubber maintains functional integrity for 24–48 months before hardening. Polyamide NATO fabric retains structural integrity beyond five years. Failure typically occurs in the terminal strap section or anchor holes, not in the primary lug attachments.

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