How to Shorten Your Bonetto Cinturini Rubber Watch Strap

Congratulations on your new Bonetto Cinturini rubber watch strap! Family-owned Bonetto Cinturini, based in Vicenza, Italy, has been crafting high-quality rubber straps for over forty years. Crafted in Italy, these straps are used by many of the world's top watchmakers for dive and sport watches. Made from high-quality vulcanized nitrile (NBR) rubber, these straps are waterproof, non-toxic, non-allergenic. They are also resistant to saltwater and UVA damage. Compared to silicone, NBR rubber attracts far less dust and lint, keeping your strap looking clean and refined. Explore the full Bonetto Cinturini collection for other styles and colors.

Adjusting Your Strap for a Perfect Fit

If your strap feels a bit loose, don’t worry. One of the advantages of Bonetto Cinturini deployant straps is their adjustability. Follow these steps carefully to shorten your strap without compromising its integrity.

Caution: Measure twice, cut once. Remove only a small section at a time to avoid cutting it too short. Straps cut incorrectly cannot be returned or exchanged.

Step-by-Step Instructions

Bonetto Cinturini sizing instructions
Opening the deployant clasp to remove the strap piece.

1. Open the deployant clasp. Using a spring bar remover, small screwdriver, or similar tool, push through one of the three pinholes on the side of the buckle to disconnect the spring bar. Remove the strap piece from the deployant buckle.

Bonetto Cinturini cutting instructions
Cutting a 6–7mm section of rubber from the strap piece.

2. Lay the strap piece on a flat surface. From the buckle end, carefully cut a 6–7mm section of rubber using a sharp kitchen or craft knife. Avoid cutting too close to the metal placeholder bar in the strap.

Bonetto Cinturini strap cut adjustment
Removing the placeholder bar after cutting the strap.

3. Tap out the placeholder bar closest to the newly cut edge using your spring bar remover or screwdriver. Insert the spring bar pin into this channel, discarding the removed placeholder bar.

Reattach Bonetto Cinturini strap to deployant buckle
Reattaching the strap piece to the deployant buckle.

4. Reattach the strap piece to the deployant buckle and connect it to your watch.

5. If the strap is still too large, repeat steps 1–3 on the other strap piece. Make sure to remove equal sections from each side to maintain an even fit.

6. Continue adjusting until you reach the desired length.

7. Use the three spring bar pinholes on the clasp to fine-tune the strap for a custom, comfortable fit. Enjoy your perfectly fitted strap!

Tips for Care and Longevity

  • Rinse your strap with fresh water after exposure to saltwater or sweat.
  • Avoid sharp tools near the strap outside of cutting for length adjustments.
  • Store in a cool, dry place when not in use to maintain elasticity.

Frequently Asked Questions (FAQ)

Can I return a strap that I’ve cut to size?

No, straps that have been cut cannot be returned or exchanged. Measure carefully and cut incrementally.

Is NBR rubber safe for sensitive skin?

Yes, vulcanized NBR rubber is non-toxic, non-allergenic, and safe for all skin types.

Can I adjust the strap multiple times?

Yes, you can repeat the process on each strap piece to reach the perfect fit, but always cut small sections to avoid over-shortening.

Which watches fit Bonetto Cinturini deployant straps?

These straps fit most dive and sport watches. For fixed-lug watches, consult product specifications to confirm compatibility.

Learn more about Bonetto Cinturini rubber straps and explore our full selection of deployant watch straps for a perfect fit and lasting comfort.

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