Omega · Speedmaster (Non-Moonwatch)

Strap for Speedmaster Co-Axial Stainless Steel / Black / Bracelet / Olympic Collection

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
Reference321.30.44.52.01.002
FamilySpeedmaster (Non-Moonwatch)
MovementOmega caliber 3888 hours, minutes, small seconds | date | Chronograph, column wheel | co-Axial escapement
Year2008 - 2013
CaseStainless Steel

Recommended spring bar

Spring bars Omega 22mm — 1.8mm diameter

Technical match for lug width and diameter · lug 22 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Speedmaster (Non-Moonwatch) 321.30.44.52.01.002

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Speedmaster (Non-Moonwatch) 321.30.44.52.01.002, seen from the bench

The Speedmaster 321.30.44.52.01.002 is a 44.2mm stainless steel chronograph from the Olympic Collection featuring a black ceramic bezel and Co-Axial Caliber 3888 automatic movement. The case measures 15.9mm thick with a 22mm lug width, water-resistant to 300 metres and sapphire anti-reflective crystal. This racing-oriented model combines Swiss engineering with precise timekeeping and underwater reliability.

Frequently asked questions

What is the lug width of the Omega Speedmaster 321.30.44.52.01.002?

The Omega Speedmaster 321.30.44.52.01.002 has a lug width of 22mm. This dimension, measured between the inner shoulders of the case excluding the attachment screws, allows you to select specific straps without requiring structural modifications. On milanostraps.it you will find a dedicated collection of compatible straps in various materials and colorways.

Which strap should I choose for this Speedmaster?

The 321.30.44.52.01.002 suits multiple materials: Nile alligator for those seeking patina and contrast with the ceramic bezel; shell cordovan for construction density and natural aging; Tuscan vegetable tanning, ideal in brown or burnt orange tones, for vintage-racing pairings. Vulcanized rubber remains the lightweight option for saline or high-humidity environments.

How do I change the strap on the Omega Speedmaster 321.30.44.52.01.002?

The 22mm lugs on the 321.30.44.52.01.002 are typically secured with flathead screws. Use a precision tool (spring bar tool) to insert the tension spring into the lug hole: the new strap locks onto the screw and the lug returns to position. Ensure both shoulders are properly aligned with the case before wearing the watch.

Are aftermarket straps compatible with reference 321.30.44.52.01.002?

Yes, provided the lug width is exactly 22mm. The artisanal straps from milanostraps.it are available in this size with customization options (length, color, stitching thread, deployant). The Casati Milano atelier also offers bespoke straps with personalized consultation.

What is the durability of a leather strap for this Speedmaster?

A quality leather strap (alligator, shell cordovan, vegetable-tanned calf) for the 321.30.44.52.01.002 has a durability of 3-5 years with regular maintenance: periodic cleaning, complete drying after humidity exposure, and rotation with other straps. Natural materials age rather than degrade, developing patina and character. Tuscan vegetable tanning is particularly long-lasting, especially in dry environments.

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