Equation Geek Watch

This smart and stylish watch features the equivalent notation of each number.

$68.00

Geeks: We've Got Your Number

Regular numbers? Those are for amateurs. Bring your inner genius out for all to envy with a smart and stylish watch that features the equivalent notation of each number.

For nascent mathematicians and victims of the occasional memory lapse, a cheat sheet is included with each watch:
1: i is equal to the square root of -1, so i^2= -1. The absolute value of -1 is 1.
2: This represents 2 in binary code.
3: The cube root of 27
4: 11 base 3, which represents 4 in the ternary system
5: Log(20x)=2 is equivalent to 20x=10^2 or 20x=100, where x=5.
6: Euler's product formula: phi(p^k)=(p^k)(1-(1/p)), where (p^k)=9
7: This is a binomial coefficient, so with the formula n/k = (n!)/((k!)(n-k)!), n/k=7.
8: This is a natural logarithm where ln(e^x)=x, so ln(e^8)=8.
9: This summation is equal to 3(1)+3(2)=3+6=9.
10: Since clocks "wrap around" every 12 hours, the hour number starts over after it reaches 12. This is arithmetic modulo 12. 10mod12 is 10:00, and 16mod12 would be 4:00, for example.
11: B'L is Legendre's constant, which is equal to 1, so this equation becomes the square root of 121, which is 11.
12: Hexadecimal representation of 12

Made in China. Japanese movement. 3 ATM water and splash resistant.



For more geeky timepieces, check out the Equation Geek Clock .

Only at UncommonGoods
Made from
stainless steel, steel, Glass
Measurements
Face 1.65" dia., case .315" H; Adjustable band 9" L, 20mm W
Ingredients
Item ID
22195

Still haven't found the details you're looking for? Check out our Product Q&A!

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 in the US:
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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Was the perfect gift!

5

This gift was for my son's math teacher. He happened to be my son's first male teacher, and became his favorite teacher so far, so I knew we had to get him something special. This teacher took a special interest in my son and was wonderful!

Florida

true

Engineer Dad Loved It

5

It looks great and is a awesome conversation piece.

St. Louis

true

Dissapointed

2

Very disappointed about the quality of this item. My son was so happy about this watch, but alas the hands are loose after not even 2 months.

Ontario

false

I might buy this again. Definitely

5

Perfect for my son-in-law, an engineer.

Norway

true

awesome!

5

The gift was received very well! Yeah, it works great!

Sedona AZ

true

Great buy

4

Was a gift for my boyfriend.

Lansing, Michigan

true

Excellent

5

Was very pleased when it came. Picture did not do it justice

Syracuse NY

true

Unique gift

5

So far the person loves it and wears it everyday.

Orlando, FL

true

Perfect Gift for Dissertation Advisor

5

As a MIT and Harvard grad, and now getting a doctorate in engineering, I had my eye on this watch for over 6 months, but it was only available for men, with one band style. When I came back to the site to buy it as a gift, I was delighted to see the choice of the mesh and black bands for men, which made giving as a gift easy to fit different personality types. AND FINALLY a women's version! Would like to see the band options for women too.

Washington, D.C.

true

Excellent gift for Graduation

5

It was a gift and the person who it was gifted to has been wearing it ever since . He loved it.

Naperville

true

Equation Geek Watch

4.5 103

96.0

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