Fluco Butterfly Deployant Clasp Gold

Earn up to 180 Holben’s Rewards points on this purchase
  • From Fluco, a German company founded in 1952.
  • Made in Germany.
  • Heavy gauge polished gold-plated stainless steel.
  • Easily adjusted.
  • Stronger, safer buckle connection.
  • Replaces traditional buckles with tangs (tongues).
  • Fits straps up to 3.5mm thick.
  • Perfect for dive and sport watches.
  • To determine the clasp size you need, measure your band at the buckle end. (Be sure to measure at the point where the strap meets the buckle!)

Q: Do you sell bands for women?
A: We do! Many of our short-length straps are the perfect size for women.

Q: Can you suggest a strap that looks amazing with my watch?
A: Unfortunately, because the range is so vast (and personal taste is subjective), we cannot advise regarding aesthetic suitability for specific models and styles of watches.

Q: I have an Apple watch. Will any of your straps work for me?
A: Sure! Our handy Apple watch band adapters accommodate most 22mm straps.

Q: Are spring bars available?
A: Yes, for each strap that is not already integrated with quick-release spring bars, we include one free pair of strong, seamless double-flange stainless steel bars.

Q: What strap size do I need?
A: To determine your size, use a metric ruler to measure the internal distance (in millimeters) between the lugs of your watch.

Q: My Bonetto Cinturini deployant strap is too long. Can you help?
A: Of course! See our Bonetto Cinturini sizing guide for cutting instructions.

Q: Do you offer international shipping?
A: Yes! Visit our Shipping & Returns page for more information.

Q: May I return my purchase?
A: Holben's Fine Watch Bands accepts returns of unworn, undamaged merchandise for refund or exchange within thirty days of purchase. Learn more on our Shipping & Returns page.

Need help with sizing?
  • Inspect the underside of your current watch strap for width indicators.
  • Measure the space between your watch lugs (in millimeters) using a metric ruler.
  • Research the specifications of your watch model on the manufacturer's website.
Shopping for your Apple watch?

Our stainless steel adapters enable the use of virtually any 22mm watch band with Apple Watch models 1-8, SE and Ultra, and are compatible with standard or quick-release spring bars.

Shipping & Returns

Not to brag, but Holben's is famous for our fast shipping!

United States deliveries:

All domestic shipping options include tracking.

FREE USPS Ground Advantage shipping (3-5 business day transit time) for orders over $39.
$4.95 USPS Ground Advantage shipping for orders up to $39.00.
$8.95 USPS Priority Mail (2-4 business day transit time).
$23.95 USPS Priority Mail Express (1-2 business day transit time).

International deliveries:

Quickly-dispatched USPS First Class International shipping for one flat fee of $16.95, regardless of number of items purchased.

Orders shipped outside of the USA may be subject to customs or import fees upon arrival in the destination country. Payment of any import duties, fees or taxes is the responsibility of the customer. Contact your local customs office for information regarding potential charges.

Returns & Exchanges

Holben's accepts returns of unworn, undamaged watch straps or accessories for refund or exchange within thirty days of purchase. (To ensure that items remain in original condition, please confirm suitability before fastening to your watch or wrist.)

All product packaging (bags, tags, cases, etc.) must be unaltered and returned with each item. Items without original packaging will be refused. Items that have been worn, resized, damaged or otherwise modified (including exposure to cologne, tobacco smoke, household air fresheners or other odors) will not be accepted.

Orders must be packed in a padded envelope or small box, and shipped via USPS with delivery confirmation. (Couriers such as DHL and UPS will not deliver to PO boxes.)


Please ship all returns to the address below, with a note stating your name, date of purchase and reason for return.

Returns Department
PO Box 10853
Bainbridge Island, WA 98110

We are happy to help with returns and exchanges. If you have any questions, please contact us.

Customer Reviews

Based on 75 reviews
Travis Adreon
Good quality clasp

I bought this clasp to pair with my new Raven, Airfield. I coupled the clasp with a black Hirsch Retro Ranger strap. I took a chance ordering as Flaco suggest that this clasp fits straps up to 3.5 mm thick. The Hirsch strap I chose is 3.8 mm thick. Regardless, the the fit was perfect. Also, the build quality on this German manufactured clasp is excellent and the aesthetics match my new watch and strap perfectly. Now about Holben’s: what an excellent company. Knowledgeable and customer oriented. I am very satisfied with the service I’ve received and will be a return customer. Mike has graciously answered any questions I’ve had and has gone above and beyond concerning my most recent purchase. I am very satisfied.

Fluco Deployant Clasp on my Omega Snoopy

I upgraded my strap on my Omega Snoopy and boy, does it make a difference. Much better than the pin buckle! It saves wear on the OEM strap and gets compliments. Much better than the cheap ones on Amazon.

Butterfly Deployant Buckle for my Omega Snoopy.

The Omega Snoopy comes with a pin buckle, not worthy of the watch. I searched around for a high quality deployant clasp and found Fluco. It is so much better than the ones on Amazon. It saves the OEM strap for unnecessary wear. Very pleased.


Love this thing. If it came in more varieties such as brushed steel or a brush and polish combo, I would definitely order more.

Great Bit Of Kit

My first deployant clasp for a strap. It’s really well built. Solid snaps where it needs to be. Fits my Hirsch Aryton brilliantly. Big thanks to Mike for testing it with my strap before I purchased. I am tempted to try to make a new hole cos I tend to sit between two sizes. But it is still breaking in and we’ll see if I do. Either way…quite satisfied. Also…extremely fast shipping!

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