Swatch · MoonSwatch

Strap for MoonSwatch Mission to the Moon Moonshine Gold Flower Moon

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter42 mm
ReferenceSO33M102-106
FamilyMoonSwatch
MovementETA caliber G10.212 AB ND Hours, Minutes, Small Seconds | Chronograph, Rattrapante
CaseBioceramic

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the MoonSwatch SO33M102-106

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The MoonSwatch SO33M102-106, seen from the bench

The MoonSwatch was presented by Swatch in collaboration with Omega as a reinterpretation of the famous Speedmaster. It is equipped with the ETA G10.212 AB ND caliber with functions of hours, minutes, small seconds, chronograph and split-seconds. The lugs measure 20mm in width.

Frequently asked questions

What is the lug width of the Swatch MoonSwatch SO33M102-106?

The Swatch MoonSwatch SO33M102-106 features lug width of 20 millimetres. This dimension is specific to the model and represents the distance between the strap attachment points on the case. A compatible aftermarket strap must measure exactly 20mm in width to ensure secure seating and proper proportioning relative to the dial.

Which strap is recommended for the Swatch MoonSwatch SO33M102-106?

For the MoonSwatch SO33M102-106, we recommend three complementary solutions: an alligator leather in dark tones (black or cognac) for formal contexts, enhancing the sartorial elegance of bioceramic; a NATO in ballistic nylon, grey or black, for an authentic instrumental aesthetic; and structured FKM rubber for dynamic and sporting scenarios. Choice depends on intended use: alligator leather offers sophistication, NATO ensures practicality, rubber delivers grip and contemporary appeal.

How do you change the strap on a Swatch MoonSwatch SO33M102-106?

Strap replacement on a MoonSwatch SO33M102-106 is performed by extracting the spring bars through the designated holes on the case. Position the watch face-down on a soft surface, use a thin tool (dedicated spring bar tool or small lever) to gently depress the internal spring mechanism, then slide the bar out of its bore. Repeat symmetrically on the opposite side. Install the spring bars of the new strap following the reverse procedure, ensuring they are fully seated in their respective holes.

Are there compatible aftermarket straps available for the Swatch MoonSwatch SO33M102-106?

Yes, numerous manufacturers specialising in bespoke watch straps offer 20mm solutions compatible with the MoonSwatch SO33M102-106. Milanostraps.it curates a selection of alligator, leather, NATO, and rubber straps, all suited to the model's specific lug width. Each strap is available in diverse colours and finishes, permitting complete personalisation whilst maintaining constructive authenticity.

What is the lifespan of a leather strap on a Swatch MoonSwatch SO33M102-106?

A high-quality leather strap (alligator or vegetable-tanned calf) mounted on a MoonSwatch SO33M102-106 retains structural and functional integrity for 3–4 years of moderate daily wear. The bioceramic case ensures mechanical durability, making the strap the element most subject to natural wear. Factors accelerating deterioration include prolonged moisture exposure, contact with chemical agents, and repeated mechanical stress on the lugs. Regular maintenance (conditioning with natural waxes) significantly extends useful life. NATO and rubber straps present comparable durations but with distinct degradation profiles: NATO may fray at edges, rubber may lose elasticity over time.

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