Omega · Speedmaster (Non-Moonwatch)

Strap for Speedmaster Date 40 Stainless Steel / Panda / Cordura

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter40 mm
Reference323.32.40.40.04.001 (aka: 32332404004001)
FamilySpeedmaster (Non-Moonwatch)
MovementOmega caliber 3304 hours, minutes, small seconds | date | Chronograph
CaseStainless Steel

Recommended spring bar

Spring bars Omega Speedmaster Seamaster 19mm

Technical match for lug width and diameter · lug 19 mm · Ø 1.8 mm

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Straps for the Speedmaster (Non-Moonwatch) 323.32.40.40.04.001 (aka: 32332404004001)

Selected for the 19 mm lug width

All 19 mm straps →

The Speedmaster (Non-Moonwatch) 323.32.40.40.04.001 (aka: 32332404004001), seen from the bench

The Speedmaster Date 40 Stainless Steel model 323.32.40.40.04.001 is a modern professional chronograph featuring a 40mm stainless steel case and the Co-Axial Master Chronometer caliber 9300 with instant rattrapante. This contemporary evolution of the 1957 icon combines Swiss precision with balanced proportions and functional design. The 19mm lug width ensures perfect compatibility with aftermarket straps while maintaining the instrument's professional character.

Frequently asked questions

What is the lug width of the Omega Speedmaster (Non-Moonwatch) 323.32.40.40.04.001?

The lug width for this model is 19 millimeters. This dimension represents the standard for a 40mm case and is crucial for the correct installation of aftermarket straps. The lug depth is internal to the case cage, so any strap must fit without play to prevent lateral movement.

What is the best strap for the Omega Speedmaster 323.32.40.40.04.001?

The choice depends on usage: alligator offers formal elegance and uniform grain; full-grain calf develops authentic patina over time; shell cordovan guarantees structural rigidity and natural polishing. For sports use, robust NATO or vulcanized rubber are ideal. The recommended color is medium brown or pure black, which naturally complement the Speedmaster dial.

How do you change the strap on an Omega Speedmaster 323.32.40.40.04.001?

The change requires the extraction of the pins connecting the strap to the case. Use a dedicated tool (spring bar tool) to release the elastic locks of the pins, avoiding scratches on the case. Once the pins are extracted, gently insert them into the new strap ensuring that the elastic locks snap correctly on both sides. It is advisable to perform the operation on a clean surface with good lighting.

Are there aftermarket straps compatible with reference 323.32.40.40.04.001?

Yes, all straps with 19mm lug width are compatible with this Speedmaster. Online and at Casati Milano you will find a selection of handmade straps in alligator, calf, shell cordovan, NATO and technical rubber, all made according to artisanal standards and customizable in color, size and stitching details.

How long does a leather strap last on an Omega Speedmaster like the 323.32.40.40.04.001?

Durability depends on material and usage: a quality artisanal full-grain calf resists 3-5 years in daily use; shell cordovan easily exceeds 5-7 years thanks to structural rigidity; alligator offers durability comparable to calf. Sun exposure and humidity accelerate aging. Casati Milano warranty covers 18 months from creation, during which manufacturing defects are corrected at no additional cost.

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