Strap for TT3 Chronograph RUF CTR3

For a chronograph of this technical vocation, four primary materials are recommended: alligator leather (black, dark brown, anthracite grey) for instrumental elegance; vegetable-tanned calf in cognac or medium brown for evolving patina; NATO strap in ballistic nylon for waterproofness and lightness; FKM rubber in grey or black for aquatic and sports use. The choice depends on intended application and desired contrast or tonal continuity with the hybrid case.

Remove the watch from your wrist. Using a spring bar tool, insert the tip into the gap between the internal lug and the spring bar, applying controlled pressure to release the spring mechanism. Repeat on the opposite side and withdraw the strap. Position the new strap, aligning it with the lug holes, and compress the spring bars until the securing click is felt. Use a tool with a rubber tip to avoid scratching the ceramic case.

Leather strap durability depends on frequency of use, climatic conditions (humidity, perspiration, sun exposure) and tanning method. A well-maintained alligator or vegetable-tanned calf strap lasts an average of 3–5 years in daily wear, developing a patina that enhances aesthetic character. FKM rubber straps typically last 5–7 years. To extend service life, avoid prolonged moisture exposure and apply conservative treatments (natural waxes) at least every six months.