Archimede · Deckwatch

Strap for DeckWatch Stainless Steel / Silver / Brown Leather

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

Lug width20 mm
Case diameter42 mm
ReferenceUA7929-H1.4
FamilyDeckwatch
MovementETA caliber 6498-1 hours, minutes, small seconds
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 Deckwatch UA7929-H1.4

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Deckwatch UA7929-H1.4, seen from the bench

The Archimede Deckwatch reference UA7929-H1.4 is powered by the manual-winding ETA 6498-1 caliber with hour, minute, and small seconds indications. The movement features the distinctive small seconds at 9 o'clock layout. The watch has 20mm lug width.

Frequently asked questions

What is the lug width of the Archimede Deckwatch UA7929-H1.4?

The lug width is 20mm. This precise measurement is essential to ensure correct strap compatibility. To verify, measure the distance between the metal attachment points (lugs) on the case: it must be exactly 20mm. An incompatible strap could cause dangerous play or abnormal tension on the case.

Which strap should I choose for the Deckwatch UA7929-H1.4?

The Deckwatch UA7929-H1.4 naturally pairs with straps crafted from robust and functional materials: American alligator with rectilinear grain, shell cordovan that develops dark, glassy patina, NATO in high-density polyamide for maximum simplicity, or structured FKM rubber for salt-water and UV resistance. Avoid decorative straps or light tones: they would clash with the severity of the satin-finished steel case.

How do I change the strap on the Archimede Deckwatch UA7929-H1.4?

Strap replacement is performed via screw-down or quick-release lug attachments. The Deckwatch typically follows standard procedure: use a flat lever tool (spring bar tool) to lift the inner passant, then extract the elastic spring that supports the old strap. Insert the spring into the new strap, align the passant with the lug, and press until the spring repositions. If uncertain, contact a certified watchmaker.

Can I use an aftermarket strap on this watch?

Yes, provided the lug width is exactly 20mm and the construction quality is coherent with the instrument. Milano Straps offers artisanal straps compatible with this model, crafted in vegetable-tanned leather, alligator, and technical materials. Always verify the lug width specifications before purchase. A high-quality aftermarket strap can even enhance the wearing experience compared to the original strap.

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

Lifespan depends on material and maintenance. A high-quality alligator or shell cordovan strap lasts 5–7 years with daily wear if conditioned every 2–3 months and protected from water. A vegetable-tanned calf strap requires more frequent conditioning and lasts 3–5 years. FKM rubber visibly ages after 4–6 years but remains functional longer. The decisive factor is frequency of use and exposure to moisture, heat, and UV radiation.

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