Strap for Skeleton Pure Water

The lug width of the Armin Strom Skeleton ST15-PW.05 is 20mm. This is the internal distance between the two spring bars that hold the strap to the case. It is essential to verify this measurement before ordering a strap to ensure there is no dangerous play for the movement or forcing that would compromise comfort on the wrist.

For the Skeleton, high-quality alligator is the natural choice: the irregular grain of the leather dialogues elegantly with the geometric complexity of the exposed movement. A black or slate-coloured alligator amplifies the visual effect of the skeleton, creating contrast without aesthetic competition. Vegetable-tanned calf offers a softer alternative, whilst FKM rubber represents the pure technical solution for environments of physical stress.

Changing the strap requires the use of a spring bar removal tool. Insert the tool into the lateral slot of the spring bar to release the spring tension, then extract the spring bar completely. Repeat on the other side of the case. The new strap must be fitted with the same spring bars, ensuring they are fully secured on both sides. Never force during this operation to avoid damage to the case.

Yes, it is entirely possible. Milanostraps offers a complete range of artisanal 20mm compatible straps: alligator, shell cordovan, calf, NATO and rubber. Each strap is constructed to high standards to ensure durability and comfort. It is advisable to choose materials and finishes that respect the technical and transparent aesthetics of the Skeleton, in particular black alligator or natural calf.

Lifespan depends on material and usage. High-quality alligator with vegetable tanning lasts 3-5 years of daily wear, developing a natural patina over time. Calf is slightly less resistant (2-4 years), whilst an FKM rubber strap maintains technical properties for 5-7 years without signs of ageing. Regular maintenance—cleaning with a soft cloth, conditioning the leather every 6-12 months—significantly extends the useful life of the strap.