Omega · X-33 / Z-33
Strap for Spacemaster Z-33 Titanium / Black / Leather
Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the X-33 / Z-33 325.92.43.79.01.002 (aka: 32592437901002)
Selected for the 22 mm lug width · workshop selection
Matte Blue Alligator Strap€195
Matte Dark Brown Alligator Strap€195
Matte Grey Alligator Strap€195
Hammered Calfskin Strap Light Blue€98
Hammered Yellow Strap with Ecru Stitching€98
The X-33 / Z-33 325.92.43.79.01.002 (aka: 32592437901002), seen from the bench
Frequently asked questions
What is the lug width of the Omega X-33 / Z-33 325.92.43.79.01.002?
The lug width of the Omega X-33 / Z-33 reference 325.92.43.79.01.002 is precisely 22 millimetres. This measurement represents the distance between the two lateral lugs of the case where the strap is secured. It is a non-negotiable specification to ensure correct attachment and optimal wearing geometry, so any aftermarket strap must strictly respect this dimension.
What is the best strap for the Omega X-33 / Z-33?
The best strap choice depends on your primary use. For formal elegance and aesthetic coherence with the aerospace design, a black or dark blue alligator in 22mm is unmatched. For daily wear and natural patina development, vegetable-tanned calf leather represents the optimal compromise. For tactical-military authenticity, a grey or black NATO strap directly echoes the watch's ESA heritage. For sports or water activities, FKM rubber or neoprene guarantee resistance to chemical agents and moisture.
How do you change the strap on the Omega X-33 / Z-33 325.92.43.79.01.002?
The Omega X-33 / Z-33 strap changes without specialist tools. Place the watch face-up on a soft surface (cloth, anti-scratch mat). Locate the strap passes that run through the case lugs. Gently grasp the strap on both sides and pull outward with a smooth, continuous motion: the passes will exit the lugs. Repeat on the opposite side. Insert the new 22mm strap by threading one pass into the upper lug first, then curve the strap around your wrist and insert the second pass into the lower lug.
Is there an aftermarket strap compatible with reference 325.92.43.79.01.002?
Yes, any 22-millimetre strap is technically compatible with the Omega X-33 / Z-33 325.92.43.79.01.002, since this is the standard lug width for the model. However, bespoke artisanal straps guarantee construction quality, leather selection and aesthetic personalisation impossible to find in standard straps. Milano Straps offers 22mm straps in alligator, calf, shell cordovan, vintage leather and NATO, customisable in colour, length, stitching finishes and even embroidered initials.
How long does a leather strap last on the Omega X-33 / Z-33?
Leather strap durability depends on material, use and maintenance. A quality alligator strap can last 5-7 years of regular wear, whilst common calf leather wears within 3-4 years due to micro-scratching from daily use. Shell cordovan, though fragile to impacts, can last 8-10 years if worn occasionally. Canvas NATO straps are practically indestructible and last decades. Regular maintenance—cleaning, leather conditioning, quick drying after humidity exposure—extends lifespan by 2-3 years. Milano Straps offers an 18-month warranty on all bespoke straps, with regeneration and repair services available through the Casati Milano atelier.
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

