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[Forstner] Wide Version Komfit "JB" Mesh Watch Bracelet with Straight Ends

SKU: Z-FORSTNER-040-JBW1
Sale price$201.87 AUD
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Size: Original (Wrists between 18cm and 25.5cm)
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 →

The Story

Forstner's stainless steel expandable mesh watch band (called the "Komfit") was one of the only watch bracelets sanctioned by NASA for use on manned space missions. It was worn by astronauts throughout the Mercury, Gemini, and Apollo programs, and even made it to the surface of the moon. Now, after a long hiatus during which time only vintage models could be sourced at high prices, we have reissued and improved this classic watch strap.

Details

The present wide version Komfit band has all the features that popularized the bracelet with NASA astronauts, but the width has been increased to more contemporary proportions. In particular, this wide version Komfit band has an 18mm wide central mesh portion, and spring-loaded end pieces that expand to fit watches with lugs up to 22mm (it can compress inward to fit watches with lugs as narrow as 19mm). The bracelet is otherwise identical to the classic Komfit -- with its square-patterned mesh, beautifully decorated spring-loaded end pieces, forward-facing clasp, and ability to be easily sized in micro-increments for the perfect fit.

End Piece Construction/Width

Straight "universal" fit end piece with spring loaded construction (can compress when pressed). Fits watches with 18mm, 19mm, 20mm, 21mm, or 22mm lugs. End piece fits spring bars up to 1.8mm thick.

Mesh Width

18 mm at the central mesh portion.

Length

The Komfit band is offered in two lengths: "Original" and "Regular.

The "Original" reflects the length once worn by astronauts over their space suits, and as a result is equivalent to a "long" size. The "Original" works best on wrists at least 7 inches (18 cm) in circumference and will fit wrists up to approximately 10 inches (25.5 cm) in circumference.

The maximum length of this strap unstretched is 23.5cm spring bar to spring bar. The shortest length of this strap is about 14cm. These measurements do not include a watch.

The "Regular" was made to fit small to medium wrists, and works best on wrists between 5.75 inches (14.5 cm) and about 7 inches (18 cm) in circumference. For a wrist at 7 inches in circumference, either size will work, but we think the "Original" provides the best look.

The maximum length of this strap unstretched is 19.8cm spring bar to spring bar. The shortest length of this strap is 12cm. These measurements do not include a watch.

It weighs about 24g total. 

Instructions for Use

For tips on using and caring for your bracelet, click here.

Included

Internal lug protectors provided with each order.

Shipping

FREE shipping over $30 AUD.
FREE International postage over $110 AUD.