UncleUS1450 Lincoln Bracelet (Omega Speedmaster 20mm) 1861 Caliber

SKU: Z-UNCLE-043-BR-OMSPE-20145DB
Sale price$289.95 AUD Regular price$298.86 AUD
Save $8.91 AUD
Size: 20mm (Double Milled Button Clasp)
Finding your Strap Width

How to Find Your Strap Size

Not sure what size strap you need? There are three ways to find out - pick whichever is easiest for you.


1
Quickest method

Check the Back of Your Strap

The fastest way is to flip over your existing strap and look for a number printed or stamped on the back. A number like 22 means your watch takes a 22mm strap - that's all you need to know.

Strap size printed on the back of a watch strap

Most smartwatches will show 18, 20, or 22 on the back of the strap or on the underside of the watch itself. The number refers to the strap width - how wide the strap is where it attaches to the watch - not the overall length of the strap.

Can't find a number? If there's nothing printed on your strap, use Method 2 below to measure it directly - it only takes a minute.
2
Most accurate method

Measure the Lug Width

The lug width is the distance between the two metal prongs (lugs) on one end of your watch case - this is exactly where the strap attaches, and it's the same as the strap width you need to order.

Diagram showing the four lugs on a watch and where to measure

Your watch has four lugs - two at the top and two at the bottom. Measure between the two lugs on either end (the red line in the diagram above). Both ends will give the same measurement.

  • Lay your watch face-up on a flat surface.
  • Place a ruler or tape measure across the top set of lugs.
  • Measure the gap between the inner edges of the two lugs.
  • That number (in mm) is your strap size.
Ruler measuring lug width on a watch Two ways to measure watch lug width - ruler and tape measure both showing 22mm

Both measuring methods in the image above give 22mm - so this watch takes a 22mm strap.

Avoid phone camera rulers Camera-based measurement apps are often inaccurate enough to give you the wrong size. A 1mm error is all it takes for a strap not to fit - use a physical ruler or tape measure instead.
Why our straps measure slightly under size Our 22mm straps actually measure around 21.95mm - this is intentional so the strap slides cleanly into your 22mm lugs. This is standard across the industry.

If you're still unsure, you can also measure the top of your existing strap where it meets the watch (marked A in the diagram below). Don't measure further down - straps taper as they get longer, so you'll get a smaller number than you need.

Strap component diagram showing where strap width is measured
3
No ruler needed

Look It Up on Google

For popular watch brands and models, you can often find the lug width with a quick Google search. This works well if you know your exact model name or number - manufacturers sometimes change strap sizes between models, so the more specific you can be, the better.

Search for:

[Brand] [Year] [Model Name/Number] lug width

For example:

Rolex 2016 Submariner 114060 lug width
Daniel Wellington 2019 Cornwall lug width
Example of a Google search result showing lug width for a watch model

If the lug width search returns nothing, try replacing "lug width" with strap width - both terms are used interchangeably.

Got an odd-numbered result? If Google returns a 21mm lug width, a 20mm strap will still fit - there'll be a small 0.5mm gap on each side. You'll also need to reuse your original spring bar for the strap to attach correctly.

View common smartwatch strap sizes →

Free fit check - enter your watch model and size and we’ll confirm your order is correct.

Uncle's notes

It's been called the "Holy Grail" of all Speedmaster bracelets, and once you try it on you understand why. Not only are they hard to find, but if you do find one you will have to cough up 1/2 the price of what you paid for the watch to buy it. Can a bracelet really be that great? I'm here to tell you, yes! 

When I began researching the best vintage Speedmaster bracelets, I knew the 1450 would have to be made. So few collectors have them, and everybody wants one. So I bring to you my offering of the US1450.

In appearance it looks similar to the US1171, but with a few important differences: First, the US1450 has solid end-links, which adds a little more weight, but is not over-the-top heavy like the modern, OEM releases. Secondly, the size of the links become progressively larger from the clasp to the case. This makes for a more comfortable fit that is hard to describe. Finally, I improved upon the clasp by not only adding my logo which is more in the classic Omega style, but made it so it has a more secure "snap" when closed. 

[PLEASE NOTE: The US1450 requires special end-links for the new Speedmaster 3861. If you need them, please message us via our live chat to check if we have them available.]

What's included

One President-style bracelet, one pair of solid end-links, one pair of 1.8mm spring bars. 

Specs

20mm: 

  • Lug width to Buckle: 20mm to 16mm (FOIS is 19mm to 16mm)
  • Length: 180mm
  • Min length after adjusted: 120mm
  • Buckle: Stainless Steel Vintage Pressure Clasp
  • Thickness: 3.8mm/3.1mm/2.6mm (They are varied as they taper)
  • Net Weight: 60 grams
  • Finish: Brushed metal
  • Spring bar diameter: 1.8mm
  • Lug end style: Solid Curved End
  • Adjustment type: 6 removable links-- pin type adjustment
  • Material: 316L Stainless Steel, all solid links including end links

Compatible Models

20mm may fit:

  • Omega Speedmaster Professional (Pre-3861)
  • Omega Speedmaster Professional 3861 (request special end links)
  • Pagani PD-1701
  • Casio MTP1302D-7A2 (20mm)
  • Omega Speedmaster 2007 Broad Arrow 3550.50.00

Free Shipping

Free on orders over $30. Shipped from Melbourne.

12 Month Warranty

We're confident you'll love our straps that we'll back it for 12 months!

11,000+ Verified Reviews

Over 210,459 customers keep coming back for more.

ProductReview Winner

2025 & 2026 winner. Trusted for quality and consistency.

Will this fit my watch?

This strap is specifically designed for a specific watch model.

Please check the description to see if your model is there. If your watch is not listed there, chances are it won't fit.

Each watch is different and the curvature of the case as well as spring bar hole positioning is different so it's impossible for us to know if this will fit your watch without testing it.