Siena Brown Leather Watch Strap


Tuscan Depth

From the vegetable tanning to the splitting – in hours and hours of traditional work, the craftsmen of Tuscany create a leather for our watch straps that is incredibly supple.

The extra oiling of this leather gives the burnt orange tones a stunning depth that has made our side-stitched Siena straps so popular. Handcrafted by Italian Artisan JPM.

Regular 12 + 7,5 cm (4.72 + 2.95 in.)
Short 10,5 + 6,5 cm (4.13 + 2.56 in.)
Long 13 + 8,5 cm (5.12 + 3.35 in.)

Buckle sizes:
Lug width 21/20/19/18 mm = 16 mm buckle
Lug width 22 mm = 18 mm buckle

Care instruction

Our leather straps are made of all-natural vegetable tanned leather. There is no chemical coating or waxing on top, which is why they are so very soft and comfortable. This natural quality also causes aging of the leather by sunlight and everyday wear. Every strap gets its own individual patina, which is something we love. Please don’t treat the leather with oil or wax as it ruins the whole nature of the strap. This also comes with a warning: avoid direct contact with water, as it may cause stains. So don’t wear your strap in the shower or when swimming and be cautious of heavy rain or perspiration. We recommend not wearing the strap in the gym.

Installation advice

We advice using a high quality spring bar for installation of our straps. Especially with newer watches, the gap between the case or bezel and the spring bar may be more narrow than on older pieces. To avoid scratches on the leather, we advise you to treat the strap carefully and without force when installing it on your watch. If it does not seem to fit at all, you might need curved spring bars or a different watch strap altogether. If you're unsure about this, feel free to consult with us before placing your order.

Seems a bit loose? Here’s why

As vegetable tanned leather tends to shrink a bit when worn, all our leather watch straps are intentionally designed with a tiny bit more width to prevent them from feeling or looking too small after some wearing. When first installed with your watch, the strap might appear a bit snug – but after a while, it will stretch and fit perfectly between the lugs. For Bulang and Sons, this is a mark of quality and proof of our traditional and natural approach.

Can’t wait to receive you package? With Bulang and Sons you don’t have to. We are located in The Netherlands and have ways of getting your order to you fast. 

Customer Reviews

Based on 36 reviews
Sergey B.
Perfect mate for an IWC Portugieser Chronograph

I got an IWC Portugieser Chronograph as a gift recently (year 2021 model, golden hands, stainless steel case). I love the watch, but the stock black alligator leather strap that came with it is a bit too dressy in my opinion and makes the watch slightly too dressy for a daily wearer (which is how I intend to use the watch). After searching online for some time I came across this Bulling & Sons strap, and decided to give it a try. the 20mm version fits the Portugieser perfectly, and although this strap slightly tapers at the ends, it even works with the IWC deployment clasp that came with the watch (only slightly loose, but not a real issue). The leather feels of high quality, it's soft, not too stiff, not sticky, does not have an odd smell (that cheaper leather straps have sometimes), and comes with a worn, almost pre-worn look (in a good way), which fits this watch perfectly. When shopping around, I contacted customer support via WhatsApp at like 3AM Chicago time and got a response within minutes. Delivery took 2 days, with functional FedEx tracking and an overall easy to use ordering experience. 5 stars.

Sierra Brown Leather Watch Strap

Love my first watch strap from B&S on my Tudor Heritage BB41!

Patrick Leaman
Love it

This is the exact band I was hoping to get when I ordered it. Oozes class, looks great with my Seiko SARB017 and feels great on the wrist. Thank you!

Mark de Vries
Briljant strap

Great quality strap, completed with a nice buckle. Highly recommended.

Andy Lai
Great leather straps

Love these! Comfortable and quality!

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