Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
So weird, I put in my serial, and it only gives me a little information. It's a silver 5S, got it I think on October 15th. Built week 40 (October).

Nice Name:
Family name:
Group1:
Group2:
Generation:
Production year: 2013
Production week: 40 (October)
Model introduced:
Memory - number of slots: Please tell us how many memory (RAM) slots this machine has.
Factory: F1 (China, Zhengzhou - Foxconn)

I'm wondering why mine doesn't have detailed information.
 
I placed order on 9/20, received 10/21. My phone shows last reset 10/4 @ 5:30 AM

Here's what came up for me:

Nice Name: iPhone 5s
Family name:
Group1: iPhone
Group2:
Generation:
CPU speed: 1.3GHz
Screen size: 4 inch
Screen resolution: 1136x640 pixels
Colour: Gold
Production year: 2013
Production week: 40 (October)
Model introduced: 2013
Capacity: 32GB
Memory - flavour: xx
Factory: C3 (China)

On a side note...I'm only getting at least 6-7 hrs usage, brightness @ 25%, bluetooth on, wifi on, background app refresh on for some apps, auto updating off. Is this fine? feel like iOS 7 is draining my battery way to fast! I used to get those usages times on my iPhone 4!
 
Colour: Gold
Production week: 42 (October)
Capacity: 32GB
Factory: DN (China, Chengdu - Foxconn)
 
Mine is the date and time that I originally set up the phone also (it's 7 minutes after the time on my receipt; I was in personal setup at the Apple Store.)
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.