Hamilton · Ventura

Strap for Ventura Elvis80 Auto Stainless Steel / Silver / Bracelet

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

Lug width21 mm
Case diameter43 mm
ReferenceH24505111
FamilyVentura
MovementHamilton caliber H-10 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 Ventura H24505111

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Ventura H24505111, seen from the bench

The Hamilton Ventura was introduced in 1957 as the world's first electric watch, characterized by its distinctive triangular case. It features the automatic Hamilton H-10 caliber with hour, minute, second and date indications. The lugs measure 21.20mm in width.

Frequently asked questions

What is the exact lug width of the Hamilton Ventura H24505111?

The Hamilton Ventura H24505111 features a 21 mm lug width. This dimension is specific to modern Ventura models and does not conform to standard ISO specifications (20 or 22 mm). To verify compatibility, measure the interior of the lug from one side to the other of the central hole using a digital calliper: the measurement should be as close to 21 mm as possible.

Which strap material pairs best with the Ventura H24505111?

For the modern geometry and high-tech aesthetic of the Ventura H24505111, we recommend alligator leather with fine grain in dark brown or black: the regular texture of the leather mirrors the constructive sobriety of the stainless steel case without competing visually. Valid alternatives: vegetable-tanned calf leather in satin finish (for everyday versatility) or heavyweight canvas NATO (for controlled sportiness).

How do I change the strap on a Hamilton Ventura H24505111?

Strap replacement requires releasing the articulation spring bars. Use a spring bar tool to compress the elastic ends of the bars and gently extract them from one side. Next, insert the new strap by aligning the holes and reinsert the bars, ensuring they are fully locked. If you feel uncomfortable with this operation, entrust it to an experienced watchmaker.

Can I use non-original aftermarket straps on the Ventura H24505111?

Absolutely yes. Artisanal straps in Italian leather or technical rubber from specialist suppliers offer quality equivalent to or superior to OEM straps, with the added benefit of aesthetic customisation. The only constraint is compliance with the 21 mm lug width and total length (standard: 120 mm on the 12 o'clock side, 80 mm on the 6 o'clock side).

How long does a leather strap last on a watch worn daily?

A high-quality leather strap (alligator or vegetable-tanned calf) on a watch worn 5–6 days a week under normal conditions lasts approximately 3–5 years. Durability depends on exposure to moisture, perspiration, and constant friction. Application of water-repellent cream every 6 months significantly extends lifespan. Technical rubber offers greater durability (5–8 years) but less aesthetic character.

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