I’ve Looked For The Web Site Of ‘Silicon Scientific’ Atomic,RF Wireless With Thermometer & Come Up With A Lot Of Sellers Of The Clocks Of Other Makers, But No Specific Web Site.
The Only Seller Of This Model Seems To Be A Reseller/Re-Builder Of Everything You Thought You Needed At http://www.heartlandamerica.com/

Consumer Electronics> Other Electronics
Apparently ‘Radio Shack’ http://www.radioshack.com Is Selling Them As Well.
Same Product, Just Under Their Brand Name.
I Wonder Who Made This Clock In The 1st Place & If I Will Ever Find Out Who That Manufacturer Is ????
PS
I Live In Puerto Rico Which According To The Very Limited Description Manual That Came With The Clock, I Am Just Out Of Range Of The ‘Radio Frequency Emanating From The ‘WWVB’ Radio Station Located In Boulder, Colorado [ I Haven't A Clue As To What Those Initials Stand For] USA Which Updates Every Day At 1:00AM "When There Is Less Interference.

That’s a tough one, I cant find it, "Silicon Scientific" will be a brand name front, probably made by a large company but I can’t find who