So close to 100 suggestions !!!

http://backpack.tf/classifieds/?item=Invis%20Watch&quality=11&tradable=1&craftable=1

3.5 Keys or less

http://www.tf2outpost.com/trade/22998476 - 2 keys 7 ref – 2 days?

http://www.tf2outpost.com/trade/23031171 - sold

http://www.tf2outpost.com/trade/23044845 - young

http://www.tf2outpost.com/trade/23038102 - young

http://www.tf2outpost.com/trade/23029709 - 1 day

http://www.tf2outpost.com/trade/23025414 - 1 day

http://www.tf2outpost.com/trade/23029011 - 1 day

http://www.tf2outpost.com/trade/23004283 - 2 days

http://www.tf2outpost.com/trade/23001860 - 2 days

http://www.tf2outpost.com/trade/22990526 - 3 days

http://www.tf2outpost.com/trade/22991458 - 3 days

http://www.tf2outpost.com/trade/22820615 - 1 week

http://www.tf2outpost.com/trade/22810654 - 1 week

http://www.tf2outpost.com/trade/22798053 - 1 week has multiple

3.6 Keys

http://www.tf2outpost.com/trade/22830839 - Sold

http://www.tf2outpost.com/trade/23000024 - Sold 1 of 2

http://www.tf2outpost.com/trade/22864895 - 1 week

3.7 Keys

http://www.tf2outpost.com/trade/22987232 - 3 days

http://www.tf2outpost.com/trade/22949244 - 5 Days

4.0 Keys

http://www.tf2outpost.com/trade/22977792 - 3 days

http://www.tf2outpost.com/trade/22983040 - 3 days

http://www.tf2outpost.com/trade/22951464 - 5 days

http://www.tf2outpost.com/trade/22952425 - 5 days

http://www.tf2outpost.com/trade/22941367 - 5 days

http://www.tf2outpost.com/trade/22945003 - 5 days

http://www.tf2outpost.com/trade/22955074 - 5 days

http://www.tf2outpost.com/trade/22827952 - 1 week

http://www.tf2outpost.com/trade/22881266 - 1 week

http://www.tf2outpost.com/trade/22829739 - 1 week

http://www.tf2outpost.com/trade/22832463 - 1 week

http://www.tf2outpost.com/trade/22710823 - 2 weeks

http://www.tf2outpost.com/trade/22685539 - 2 weeks

To many unsolds at 4 keys and to readily available at 3.5 keys. I know that 3.6 has sold twice but due to rising key prices and the amount of 3.5 sellers im not going to make a range and just round to 3.5 keys flat, if anyone has a problem with me rounding to 3.5 flat please do tell me and I will change it.

Thanks.