Omega · Speedmaster (Non-Moonwatch)

Strap for Omega Speedmaster (Non-Moonwatch) 323.30.40.40.04.001

The Speedmaster Date 40 Stainless Steel / Panda / Bracelet takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width19 mm
Case diameter40 mm
Reference323.30.40.40.04.001 (aka: 32330404004001)
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

All Omega spring barsOpen →

Straps for the Speedmaster (Non-Moonwatch) 323.30.40.40.04.001

Selected for the 19 mm lug width

All 19 mm straps →

What I'm asked about the Omega Speedmaster (Non-Moonwatch) 323.30.40.40.04.001

What strap size does the Omega Speedmaster (Non-Moonwatch) 323.30.40.40.04.001 take?

The Omega Speedmaster (Non-Moonwatch) 323.30.40.40.04.001 needs 19 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Omega Speedmaster (Non-Moonwatch) 323.30.40.40.04.001 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Omega Speedmaster (Non-Moonwatch) 323.30.40.40.04.001?

Yes, in 19 mm leather. On a 40 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the Omega Speedmaster (Non-Moonwatch) 323.30.40.40.04.001?

A 19 mm box calf. You'll find it ready in the 19 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

The Speedmaster (Non-Moonwatch) 323.30.40.40.04.001, seen from the bench

The Speedmaster reference 323.30.40.40.04.001 features the Omega 3304 caliber with hour, minute, small second, date and chronograph functions. The model has 19mm lugs and belongs to the Speedmaster non-Moonwatch line. The movement offers date indication in addition to the traditional chronograph functions.

Frequently asked questions

What is the best strap for the Omega Speedmaster 323.30.40.40.04.001?

The ideal strap depends on intended use and desired aesthetics. For daily sports wear, an alligator in brown or black tones offers natural grip and patina development over time. For formal elegance, calf leather with a steel deployant clasp expresses stylistic cohesion. For dynamic contexts, a NATO strap in linen or cotton emphasizes the chronograph character. An FKM rubber strap represents the technical solution, while leather with vegetable tanning ensures aesthetic longevity and sustainability.

Can I use an aftermarket compatible strap on this Speedmaster?

Absolutely yes. Any strap with a lug width of 19mm is compatible with the 323.30.40.40.04.001. On milanostraps.it you will find 19mm straps in various leathers, textures and colors. The internal dimension between the lugs remains the critical parameter: always measure before ordering. Superior quality artisanal straps offer aesthetic and durability opportunities clearly superior to generic products.

How long does a leather strap last on a watch like this?

A quality leather strap, worn daily on a Speedmaster, has an average lifespan of 3-5 years before requiring replacement due to visible wear (edge fraying, creasing cracks). Alligator and shell cordovan straps rank at the top for durability, developing a fascinating patina over the years. Vegetable tanning ensures greater structural resistance compared to chrome tanning. Exposure to sweat, water and UV rays accelerates aging. A premium strap with regular maintenance (light conditioning, protection from direct sunlight) can remain aesthetic for 7-10 years.

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

The atelier's website: casatimilano.com