Omega
Speedmaster Reduced 3802.72.55— lug 18mm
Omega Speedmaster Reduced 3802.72.55: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 18mm lug width to preserve the original sartorial balance."
Technical Specifications
Omega 3802.72.55The essential strap measurement.
Browse 18mm straps →3802.72.55
Omega caliber 3220 Hours, Minutes, Small Seconds | Chronograph
The Heritage
Compatible Straps
Selected for the 18mm lug width of the Speedmaster Reduced
FAQ
What is the exact lug width of the Omega Speedmaster Reduced 3802.72.55?
The lug width of the Speedmaster Reduced 3802.72.55 is 18.00mm ±0.3mm tolerance. This measurement is specific to the 39mm model and is more compact compared to the Professional which uses 20mm lugs. To verify correct tolerance, use a digital caliper by measuring the distance between the inner shoulders of the already-mounted lug.
Which strap material is most suitable for the Speedmaster Reduced 3802.72.55?
Black-dyed alligator represents the most appropriate choice to enhance the racing dial: the natural grain creates balanced texture and the softness of the leather prevents excessive stiffness. Valid alternatives include vegetable-tanned calf (which develops natural patina over time), black vulcanized rubber for a sporty approach, and anthracite NATO fabric for summer months.
How do you change the strap on the Speedmaster Reduced 3802.72.55?
Position the watch on a protective cushion with the caseback facing upward. Use a spring bar tool to gently compress the spring of one lug, then extract it from the holder. Repeat on the other side. Insert the new strap by first aligning one end in the spring holder, then compress the opposite spring until it clicks into position. Verify that the strap is centered and that the spring is completely secured.
Are aftermarket 18mm straps compatible with the 3802.72.55?
Yes, any strap with the correct <a href="/pages/termine-glossario/misura-ansa">lug width</a> (18.00mm) is compatible. However, quality varies significantly: defective straps with imprecise tolerances cause internal chafing and accelerated spring wear. Choose straps measured with precision by experienced craftsmen, not generic suppliers.
How long does a leather strap last on a chronograph like the 3802.72.55?
A quality leather strap (alligator or vegetable-tanned calf) has an average lifespan of 2-4 years with daily use, considering exposure to sweat, natural light and micro-wear due to chronograph movement. Factors such as humidity, frequency of wear and maintenance directly influence longevity. The Casati Milano atelier offers an 18-month warranty on every custom strap.
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 →By appointment only · Milan
The atelier's website: casatimilano.com