Strap for MoonSwatch Mission to the Moon Moonshine Gold Strawberry Moon

The lug width of the Swatch MoonSwatch SO33M102-107 is precisely 20mm. This is a constant technical specification of the model. The measurement should be taken internally, between the spring bars (lugs) that support the strap, using a ruler or digital callipers. All straps constructed to 20mm specification are perfectly compatible with this watch.

There is no singular best choice—it depends on usage and personal preference. Alligator offers tactile luxury and noble ageing; vegetable-tanned calf provides softness and extraordinary durability. For a sporty-contemporary approach, NATO straps in genuine Cordura canvas enhance the technical nature of the chronograph. Rubber offers absolute comfort and zero maintenance, emphasising the bioceramic case's modernity. We recommend evaluating the watch's primary use before deciding.

Changing the strap requires a spring bar remover tool or a small flathead screwdriver. Position the remover in the gap between the case and the spring bar, apply gentle lateral pressure to release the spring tension, and remove the old strap. When reinstalling the new strap, ensure the spring bar clicks firmly into position. If you lack experience, consult a professional: the bioceramic case requires care to prevent scratches.

Yes, any artisanal strap constructed for 20mm lugs is compatible with the SO33M102-107. However, we recommend sourcing from specialised makers who understand the proportions and aesthetic of this watch. A superior-quality strap—in alligator, vegetable-tanned calf, or genuine NATO—transforms the wearing experience and valorises the craftsmanship of the movement and bioceramic case.

Durability depends on material and usage. High-quality alligator, with proper care (avoiding prolonged immersion, drying after water contact), lasts 5–8 years. Vegetable-tanned calf achieves even 10 years thanks to its natural robustness. NATO straps in Cordura canvas offer greater durability because the fabric doesn't degrade like leather. Rubber is virtually eternal. We recommend replacing leather straps when evident signs of wear appear, especially at the lugs.