With a super lightweight titanium case and bracelet, this sport IWC SL Design makes for an interesting and practical watch. Model reference 4517.


It hasn’t been easy to find information on this model, but have found two watches for sale with original sales papers.  One was stamped for 1986, and the other for 1990.  We would prefer a wider base, but with the lack of other information we are going to say this watch was made circa 1986.  IWC were a pioneer of Titanium cases, and the first watch they made using this light yet hard metal was launched in 1978.


IWC currently only make men’s watches, and to the point where they made some comically poor adverts in the 1990’s (one said ‘Almost as complicated as a woman, except it’s on time’!  But here we have a clever, interesting and smart ladies SL Design that predates those later remarks.  Titanium is very hard and difficult to work – the tools used need to be even harder, but thanks to IWC’s previous achievements this is a triumph.  The bracelet is held together with a sprung pins that can be pressed back without the need for special tools, making removing or adding links very easy.  This material is very light though – the entire watch and bracelet weighs under 47 grams.  The movement is more conventional – a set and forget IWC 2249 quartz calibre with quick set date.  We will install a brand new battery before sending the watch out to the new owner.  Overall the watch presents very well, with just a few signs of age.  The bracelet is quite long and our sister website, SpareLinks.com, may have extra links if required.  The bracelet has been cleaned in our ultrasonic bath.

This watch will be supplied with our branded presentation box and our Certificate of Authenticity.

Please see the HD video for more detail.  All photos and videos are part of the description and are of the actual watch unless mentioned.  We do not photoshop any pictures, and the images are copyright of birthyearwatches.com and should not be used without permission.


Width with crown  27.8 mm

Width without crown  26.3 mm

Lug to lug length  35.2 mm

Case Thickness  6.3 mm

Bracelet will fit a maximum wrist size of 155 mm.  The bracelet can be sized for you if you give us your wrist size when placing the order.

All sizes are approximate.  The watch is photographed on a wrist of 150mm/6 inches.

Included with this watch is a 3 month guarantee and free delivery to UK addresses.  If you live outside the UK we can still deliver to most countries.  Please see our Worldwide Shipping information, or Contact Us.   Payment can be made by most credit or debit cards, bank transfer or PayPal.

From 1st September 2021 we will be planting a tree for every watch we sell, working with the International Tree Foundation (Est 1922) to make this business positive on carbon.  By buying anything pre owned you are effectively reusing what already exists, but this takes it further and makes us feel good.