Technical Archive

Zenith
Defy 32.9000.9004/78.R582— lug 23mm

Zenith Defy 32.9000.9004/78.R582: 23mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Defy El Primero 21 Titanium / Diamond / Skeleton / Alligator

Artisanal Note

"This model requires a precise 23mm lug width to preserve the original sartorial balance."

Technical Specifications

Zenith 32.9000.9004/78.R582
Lug Width
23 mm

The essential strap measurement.

Browse 23mm straps →
Reference

32.9000.9004/78.R582

Movement

Zenith caliber El Primero 9004 Hours, Minutes, Small Seconds | Chronograph | Chronometer, Power Reserve Indicator

The Heritage

The Zenith Defy 32.9000.9004/78.R582 represents the contemporary evolution of the legendary Defy model, originally launched in 1969 as a challenge to mechanical precision limits. It features a 44mm titanium case housing the celebrated El Primero caliber, beating at 36,000 oscillations per hour and readable to hundredths of a second. The selective skeletonization reveals the movement's perpetual motion of gears, while the case guarantees aerospace-grade lightness with 300 meters water resistance. The 23mm lug width is a proprietary Zenith standard for this oversize case geometry.

FAQ

What is the lug width of the Zenith Defy 32.9000.9004/78.R582?

The lug width of the Zenith Defy 32.9000.9004/78.R582 is 23mm. This is a proprietary Zenith standard, measuring the internal distance between the lugs of the 44mm titanium case. This measurement remains constant across all variants and ensures precise strap selection without compatibility concerns.

Which strap do you recommend for the Zenith Defy 32.9000.9004/78.R582?

We recommend an alligator strap in vegetable tanning for the Defy 32.9000.9004/78.R582, as it complements the grey titanium case and the skeletonised El Primero movement beautifully. For greater versatility, calf leather in warm brown or black tones provides comfort and durability. For sports use, a NATO or vulcanised rubber strap maintains the case's waterproof certification.

How do I change the strap on this model?

To change the strap on the Zenith Defy, use a spring bar tool. Locate the lug holes on the case, gently insert the tool into the pin groove, compress and pull the spring bar outward. Once removed, slide off the old strap and insert the new one, repositioning the pin in the lugs. This is a straightforward operation requiring no professional intervention.

Can I use an aftermarket strap on the Zenith Defy 32.9000.9004/78.R582?

Yes, absolutely. Any strap with a 23mm lug width is compatible with the Defy 32.9000.9004/78.R582. Aftermarket straps in alligator, calf, shell cordovan or rubber often offer superior finishes and customisation compared to the standard strap. We recommend selecting artisanal-quality straps to preserve the watch's value and aesthetics.

How long does a leather strap last on the Zenith Defy?

The lifespan of a leather strap depends on material and usage. A vegetable-tanned alligator strap, with proper care (occasional cleaning, avoiding excessive moisture), lasts 8–12 years. Calf leather, being more delicate, averages 5–7 years. Shell cordovan, owing to its density and structure, can last 15+ years. Rotating between multiple straps extends the life of each one.

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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The atelier's website: casatimilano.com