I am looking for the spring loaded pin to connect the band to the clasp for model #F98-04-KC3511.

yes
under the band at the ends there is a small spring loaded pin that is removed and the band comes out
use something with a sharp edge , press in in beside the leather and then push sideways to compress the spring and the pin will come out
or take it to a jeweller and he will remove and fit the new band in 5 minutes

I don't know for the swatch specifically but all watches are roughly the same beast. If you look at the side you will notice small pins on the band. With a very small jewelers screw driver and some light tapping you can pop the pins out. The end connections near the watch and then on the clasp side are usually spring loaded which can be removed with a tiny flat blade as well. Just tap out the pins and keep track of them, you will need to tap them back in once you have removed the extra link to make this smaller.

You need to make sure that if you had the watch band adjusted they did not adjust it at the clasp. When you adjust the watchband links should be removed if you adjust it at the clasp the band keeps pulling open. When you open the clasp fully make sure the pins are on the end holes. If the pins are in the end holes then, the clasp is probably sprung somehow and you will need a new one or have a jeweler or watch repairman fix it! You may also be able to order a new clasp from manufacturer! Hope this helps!!

Follow these steps and it will help u resize your watch.
1-Take a good look at the watch bracelet. Seiko watch bands are equipped with one of two different types of pins holding the links in place. One type is a simple, nail-shaped pushpin that's inserted into the joint between two links. The second is a flat, L-shaped piece of metal that slides into the center of a link and locks it into place. Both pins are removed using the same process. If the nail-shaped pushpin is present, you'll see the tiny screw heads in the joints. If the L-shaped pin is present, the links will be open-sided and you'll be able to see a strip of metal inserted in each links.
2-
Look for the arrows on the inside of the watch bracelet links. The arrows indicate the direction the pins and links need to be slid off of the band. Any attempt to go against the arrows could break or warp the links.
3-Remove the spring bar from the clasp with the small pin-removal tool. Set the watch up on it's side so that the top of the spring bar is facing up and the bottom is flush against the table. Put moderate pressure on the top of the spring bar and tilt the watch just a bit sideways so that the spring bar can slide out. Ease out the bar slowly and carefully; the spring bar is spring-loaded and will shoot away from the watch if you're not careful (make sure that the bottom of the watch is pointed away from you at all times). Put the spring bar in a small dish so it doesn't get lost.
4-Line up a small pin-removal tool with the top of the pin and push in the direction of the arrow until it slides out completely. Slide off the link. Place the pin and the link in the small dish. You'll want to save them in case the watch needs to be re-sized again at a later date. Continue removing links, alternating sides of the band to keep it even, until the watch reaches the desired size.
5-Reconnect the watch. On the side opposite where the spring bar was removed, line up the link connected to the clasp and the second link on the band. Slide the pin in the opposite direction of the arrow, using a flat-headed pin inserter to push it into the joint. Use the pin-removal tool to give it a final push, listening for the click.
6-
Reinsert the spring bar slowly, using the pin inserter. Make sure the spring bar is lined up and tightly in place to avoid injury.
Try this and it you cant manage it then you need to get it to a watch repair shop specializing in that brand.

Hi, sizing the bracelet on your ceramic watch may void its warranty, making it ineligible to receive service from the manufacturer. If you want to keep your watch covered under warranty, contact your watch manufacturer for information on their customer repair service.
If you want to remove it yourself, you need a watch pin removal tool. You can use a watch pin removal tool to remove the link pins that secure the clasp pieces to your ceramic watch band.

But if you don't have a watch pin removal, follow the instruction below........

• Find a clean, flat, well-lit work surface where you can size the bracelet of your ceramic watch. For best results, spread a soft optical cloth over your work surface and perform your repair on top of the cloth. The cloth will help prevent you from losing any small watch components, like link pins, that may be freed during repair.
• Wrap the ceramic watch band around your wrist and count how many links overlap. Use this as a guideline for how many links should be removed. Note that the actual number of links to be removed may differ slightly from the original estimate. Remove excess links from your watch band one at a time to make sure that you don't end up accidentally making the band too short.
• Remove the excess watch links from the ends of the band with the attached clasp pieces. Look between the removable ceramic watch links to locate the silicone connector pieces that join the links. Use a pair of small, pointed scissors to make a cut between the link and the silicone connector, this will free the excess links. Cut on the side of the link that faces the watch clasp. Repeat the process on the other side of the ceramic watch band.
• Remove the clasp pieces from the ends of the removed watch links. Examine the clasp pieces to look for the metal pins that hold them in place. Push out the metal pins with a push pin to free the clasp pieces. You can now reattach them to the ends of your ceramic watch band.
• Examine the newly-shortened ends of your ceramic watch band. Without the clasp in place the silicone connector pieces will be exposed. Note the two small puncture holes that go straight through the silicone connector. Insert the teeth of one of the clasp pieces through the holes in the silicone connector from the bottom. Fold over the other side of the clasp piece, reinsert the metal link pin and push the clasp to click it into place. Attach the second clasp piece to the other side of the watch band using the same procedure.

This band is put together with cotter pins. To remove the cotter pins look at the edge of the band. The end of the pin that comes out is split and looks like a screw. The end that is solid is the end you want to push from. Use a small punch to push the pin out. The split end is the bigger end of the cotter pin so it needs to come out and go back in the same way it came out. Make sure you remove an even number of links on each side so the watch sits on the wrist the right way. You also have a micro adjustment on the clasp. To adjust the clasp simply use a punch to press the spring bar in the clasp in until it moves. This is a spring bar so be careful it doesnt jump out if the clasp comes apart.

This band is put together with cotter pins. To remove the cotter pins look at the edge of the band. The end of the pin that comes out is split and looks like a screw. The end that is solid is the end you want to push from. Use a small punch to push the pin out. The split end is the bigger end of the cotter pin so it needs to come out and go back in the same way it came out. Make sure you remove an even number of links on each side so the watch sits on the wrist the right way. You also have a micro adjustment on the clasp. To adjust the clasp simply use a punch to press the spring bar in the clasp in until it moves. This is a spring bar so be careful it doesnt jump out if the clasp comes apart.

By finding a spring loaded rod in the clasp (that is in the set of three holes in the clasp) moving it to the last position. However it was still loose, so by finding the spring loaded rods that hold the links of the band together, pushing them down in the direction of the arrows and removing enough links to fit.

Most clasps have a series of small holes drilled in them, and the end of the strap is held in by a small, spring-loaded bar whose ends are seated in one set of holes. Take the end of a small paperclip, or a large needle, and use it to depress the spring-loaded pin. You can then carefully slide it to another set of holes to make the band smaller. Don't let the ends of the pin slide all the way out of the clasp, or it might shoot off into space.