RIOS1931 Nature Buffalo Leather Mocha Watch Strap

Earn up to 210 Holben’s Rewards points on this purchase
Size (lug/buckle):
  • From RIOS1931, a German company founded by master craftsman Oswald Riemer in 1931.
  • RIOS1931 is a family business, currently in its third generation of Riemer ownership.
  • Handmade in Germany.
  • Genuine buffalo leather.
  • Art Manuel Swiss full-bugg (Remborde) construction technique.
  • Handmade saddler's seams with off-white contrast stitching.
  • Hypoallergenic.
  • 6mm thick at lugs, tapering to 5mm at opposite ends.
  • Piece length 115mm / 80mm excluding buckle.
  • Total length 7-5/8" (195mm) excluding buckle.
  • Includes one free pair of strong, seamless double-flange stainless steel spring bars.

Watch an Urban Gentry video review of the RIOS1931 leather Nature strap on a Breitling Navitimer:


Q: Do you sell watch 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 34 reviews
Great strap!

I thought this would be a good match for my Hanhart Minos and I was not disappointed. It is well made. I notice most straps do not have stitching on the keepers. This is a great feature for durability. I own another strap where the loops were glued and they came apart with use. The color is true to the photos. Its not easy to find a quality Made in Germany strap, by a family owned business at a very reasonable price.

Nice match with Citizen Challenge Timer

Initial impression is pretty good, quality is consistent with the price.

Better than I expected

I would say the quality is better than you would expect for a $40 strap. lining is made of the same leather as the rest of the band. Even though the strap is thick, it starts conforming to my wrist almost from day one. And it compliments my Seagull 1963 chrono perfectly.

Excellent “Pilot Tool Watch Band”

Terrific looking Rios pilot tool band… Thick, solid, good looking leather, nothing not to like, a really tough looking leather band that will support a good sized watch…! I have purchased many watch bands from Holben’s and it’s always good…! 5 STARS

Awesome strap!

Comfortable and helps balance out my mm300 which can feel top heavy on thinner straps.

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