# Geek Wrist Watch

\$78.00

## It's Half-Past a Binomial Coefficient

Regular numbers? Those are for amateurs. Show off your mathematical prowess with a watch that features the equivalent notation of each number.

Cheat Sheet (included with each watch):
1 - Legendre's constant is a mathematical constant occurring in a formula conjectured by Adrien-Marie Legendre to capture the asymptotic behavior of the prime-counting function. Its value is now known to be exactly 1.
2 - A joke in the math world: An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says, "You're all idiots," and pours two beers.
3 - A unicode character XML "numeric character reference."
4 - Modular arithmetic, also known as clock arithmetic, is a system of arithmetic for integers, where numbers "wrap around" after they reach a certain value. The modular multiplicative inverse of 2 (mod 7) is the integer /a/ such that 2*/a/ is congruent to 1 modulo 7.
5 - The Golden Mean...reworked a little.
6 - Three factorial (3*2*1=6)
7 - A repeating decimal that is proven to be exactly equal to 7 with Cauchy's Convergence Test.
8 - Graphical representation of binary code.
9 - An example of a base-4 number, which uses the digits 0, 1, 2 and 3 to represent any real number.
10 - A Binomial Coefficient, also known as the choose function. 5 choose 2 is equal to 5! divided by (2!*(5-2)!)
11 A hexadecimal, or base-16, number.

Made in China. Standard watch battery included. This watch is not water-proof.

Exclusive
stainless steel
Measurements
Band: 9" L adjustable, Face: 1.25" dia. x .31" D
Item ID
18824

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Most of our items are in stock and will ship quickly. Orders for in-stock items placed before 5pm ET Monday through Friday, excluding Federal holidays, will ship:
Economy shipping:
within 8 days, arriving no later than the 9th business day after the order was placed.
Standard shipping:
within 4 days, arriving 5 business days after the order was placed.
Preferred shipping:
within 2 days, arriving 3 business days after the order was placed.
Expedited shipping:
within 1 day, arriving 2 business days after the order was placed.
Express shipping:
will ship the same day and arrive 1 business day later.

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REVIEW SNAPSHOT®

by PowerReviews
Geek Wrist Watch

4.0

(based on 115 reviews)

Ratings Distribution

• 5 Stars

(49)

• 4 Stars

(42)

• 3 Stars

(7)

• 2 Stars

(10)

• 1 Stars

(7)

83%

of respondents would recommend this to a friend.

Pros

• Stylish (61)
• Unique (27)
• Good quality (20)
• Functional (19)

Cons

• Poor quality (4)
• Flimsy (3)

Best Uses

• Everyday (28)
• Daily use (22)
• Work (11)
• For fun (8)
• Reviewer Profile:
• Practical (43), Stylish (30), Modern (23), Classic style (22), Athletic (11)
• Yes (62), No (18)
• Other (9), Christmas or hanukkah (5), Birthday (4)

Reviewed by 115 customers

Displaying reviews 1-10

Previous | Next »

5.0

My nephew LOVED it!

By

from Columbia, MD

Pros

• Fits Theme
• Functional
• Good Value
• Personalized
• Unique

Cons

Best Uses

This was a graduation gift for my nephew who will be majoring in Mathematics in college in the fall. The minute he saw it he loved it. He was excited to figure out how to solve each problem/equation. This is definitely a unique gift that was perfect for him.

• Yes
• Other

5.0

By

from Bellevue, WA

Pros

• Functional
• Good Value
• Unique

Cons

Best Uses

This proved to be an excellent solution to buying a graduation gift for a most 'gifted' young man who, this year, is graduating from 8th grade. Yes, it is a more 'adult' item than you'd think he would appreciate, though in fact the receipt was rated, "SCORE!!".
Right on, eh~~

• Yes
• Other

4.0

The Watch for Wizards and Wise Men!!

By

from Miami Florida

Pros

• Exceptional quality
• Fits Theme
• Functional
• Good Value
• Unique

Cons

• Watch Band To Small

Best Uses

• For Fun
• Tech Wear

This is an unusual gift. Since we got it she has had a number of comments all positive and questions on where to purchase. Even her math teacher asked where she got it and said he was going to check out the site so he could get one. Very original and functional too. Playful and informative. Definately Tech wear and a Geek Wanted item. Keep it in your arsenal of great items!!! Well DOne Uncommon goods!!!

• Yes
• Other

4.0

Looks Pretty Good On...All About Novelty

By

from Los Angeles, CA

About Me Math Lover, Nerd, Physics Buff

Pros

• Fits Theme
• Functional
• Geeky To The Max
• Unique

Cons

• Wrist Band Is Stiff

Best Uses

• Nerd Conventions

I will most likely wear this as a conversation starter at nerdy events, or just display it in my house somewhere when it's not used. I just think it's a fantastic idea and love looking at it.

• No
• Other

4.0

By

from Seattle, WA

Pros

• Fits Theme
• Functional
• Unique

Cons

Best Uses

• Yes
• Other

4.0

By

from Michigan

Pros

• Unique

Cons

• Smaller than expected

Best Uses

• Sentimental Keepsake

I bought this for my husband, who is an engineer (and quite frankly, a total geek) for his birthday last year and he absolutely loved it. It was a fun gift and he had a good time figuring out what all the numbers are, etc. I will say that the watch was smaller than I expected -- it is definitely a unisex watch. My husband is a big guy and he has to use the last hole on the strap and even at that, the watch barely fits. He really likes it, though, and the band really makes it unique. Unfortunately, the band broke some time ago, but after contacting customer service, they really went above and beyond to get us a replacement. I was beyond pleased with their service and promptness. We had a new watch within days.

• Yes
• Birthday

5.0

Awesome watch!

By

from Sapulpa, Ok

Pros

• Fits Theme
• Functional
• Good Value
• Unique

Cons

Best Uses

I bought this watch as a graduation gift for my son who is in his senior year of Petroleum Eng. at Univ. of Tulsa. I knew he would love it, so. needless to say I couldn't wait and gave it to him early. He absolutely loved the watch. It's so unique and such a great reminder of all the math courses he has taken. When the watch arrived, my husband told me he wanted it if our son didn't like it! Guess I need to order another one!

• Yes
• Other

5.0

By

from Atlanta, GA

Pros

• Affordable
• Classic Design
• Fits Theme
• Functional
• Good price value
• Good Quality
• Good Value
• Practical
• Unique

Cons

• None

Best Uses

My hubs was so excited to see this unique, conversation starter watch. His minor in college was mathematics. This watch was in line with his tech/geek personality. He loves his watch!

Delivery was prompt. The product arrived in great condition.

• Yes
• Other

4.0

Geek (or nerd) watch

By

from kennebunk ME

Pros

• Functional
• Unique

Cons

Best Uses

attractive, yet nerdy, all in one!

Delivery prompt, no issues

• Yes
• Christmas or Hanukkah

5.0

Great for a woman

By

from Topeka, Kansas

Pros

• Fits Theme
• Functional
• Good Value
• Unique

Cons

Best Uses