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The swan song of the UR-103 collection. The UR-103T Mexican Fireleg was one of the last of the 103's to be produced as a limited edition of just 60 watches.

Named after the Mexcian Fireleg Tarantula, with an all-black titanium case created using our AlTiN (aluminium, titanium, nitride) coating, giving a deep black background to the contrasting bright venomous orange luminescent markings.   

Sleeker, more aggressive and more dangerous compared to its shinier precious metal siblings. Not often seen on the open market as the Fireleg was very popular on its original launch and many of our collectors see it as a keeper. This rare piece is definitely one for the collection if you missed it the first time around.
The front of the Fireleg is predominantly sapphire crystal as the Tarantula variant was created to open up the case and dial to expose the four orbiting satellites that each carry three-hour markers, which at the start of the hour begin their silent dance across the minute's track from east to west like the movement of the sun. 

Flip the UR-103 over to reveal the 'control board' on the case back. Displayed is a  36 hours power reserve indicator, 15-minute and second dials for precise time-setting via the user-adjustable fine-tuning screw. Inside is our manual wind calibre 3.04.

 Condition Rating UR-2:UR-2: Good condition, minor marks, wear and tear, movement in serviced and working condition.

*Please note strap in photographs may differ due to export restrictions*

URWERK UR-103T MEXICAN FIRELEG: Technical Specifications

Case in: Stainless steel treated with AlTiN (Aluminium, Titanium, Nitride)
Dimensions: 50mm x 36mm x 13.5mm (including lugs)
Movement: Calibre 3.04 manual winding; 21,600bph/3Hz; Power reserve 36 hours; Triple bridges in black ARCAP P40; Time indication by hour satellites rotated by Geneva crosses; Orbital cross, hours and minutes treated with orange Super-Luminova
Control Board: Grade 5 titanium, power reserve indicator, 15-minute and seconds dials for precise time-setting, user adjustable fine-tuning screw

In the rare event that you’re not totally in love with your URWERK purchase, please contact us by calling +41 22 900 20 25 and we will talk you through our returns process.  

Please note that we cannot refund returned items unless all elements on the returns checklist are confirmed.

Returns checklist:
1. All tags and labels are in place and haven’t at any point been removed from the product.
2. The watch or strap is unworn. Products are free of any marks, scratches that were not there at the time of shipping.
3. All instructions, guarantees, presentation packaging etc. are in the same condition as before shipping.
4. Returns are made to us within 14 days (URWERK does not cover the cost of returns; this falls to the client. Returning a product needs to be done by an official courier and be fully insured with a tracking number.) 


Please contact us on +41 22 900 20 25 as soon as you become aware of a fault.


Once the item has been returned to URWERK for inspection and approval please allow up to 14 days from the date of receipt for the refund to be processed. Funds will be credited to the original payment method used.

We have you covered; as a thank you for selecting the URWERK SHOP, we ship anywhere in the world free of charge. 

Nice and Simple. But remember we don't cover local import taxes and duties, these are the responsibility of the client. So please before making a purchase check with your local authorities regarding any possible fees. 

Delivery Options

Watches will be shipped using the best courier service based on your location. Please note, deliveries are not made on Bank Holidays or Sundays. Please allow additional time, if ordering on or near public holidays or weekends. Delivery will commence once payment is secured depending on payment type.

Important Information

Please check that the shipping address is correct as we are unable to redirect orders once they're in transit, and we are unable to deliver to PO box numbers.

Before we can despatch your purchase, we may need to confirm your details with your card issuer. Please ensure that your billing address matches that kept on record with your card issuer. We will do our best to minimise any delay. Occasionally we may need to contact you to confirm additional security details before shipping your order.


Your purchase is insured whilst in transit until it is delivered to you. We require a signature for any goods delivered, at which point responsibility for your purchased goods passes to you. If you do not receive the goods in person (i.e. for gift orders or where an item has been signed for by a concierge/reception desk) then the person who signs for the package confirms receipt and is accountable for the package. 

Watch Strap Leather

Please be aware that due to the protection of endangered species our watches cannot be shipped on Alligator leather straps. As this can result in major delays in you receiving your new purchase. If you do want to purchase a leather strap for your URWERK please contact us via the contact page and let us know and we will try our best to help.

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