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Description
The Human Abacus by Sean Taylor and Richard PaddonThe Human Abacus is PERFECT for the parlor or stage performer. From the minds of Sean Taylor and Richard Paddon, this brilliant effect is not only baffling and entertaining, but lends itself perfectly to either a serious or light hearted presentation. Whichever way you go with it, the impact will be the same HUGE! Early in 2018, I purchased the rights to two effects from Sean his Pi Book Test and Flash Addition routine. After playing with them for a
The Human Abacus is PERFECT for the parlor or stage performer.From the minds of Sean Taylor and Richard Paddon, this brilliant effect is not only baffling and entertaining, but lends itself perfectly to either a serious or light-hearted presentation. Whichever way you go with it, the impact will be the same -- HUGE!
Early in 2018, I purchased the rights to two effects from Sean -- his Pi Book Test and Flash Addition routine. After playing with them for a while, I realized that they fit together beautifully to form a brilliant multi-phased routine.
After a little brainstorming, the Alakazam team came up with a few killer endings...
The Mental Mathematician
For your final feat of amazing mind-power, your spectator just thinks of the digits as he inputs them into the calculator and, by reading his mind, you can solve the sum.
The Sum Swami
You can prove that you predicted the final outcome well ahead of time.
And There's More
Not only will you solve a huge sum before your spectator has even put the first line of digits into the calculator, but you have even determined the sum on the other side of the board!
Human Abacus Routine
The Book Test
You start by showing a book which contains the first 4,000 decimal positions of PI. Stating that you joined a book club which meets once a month, you were told you had to read The Life of Pi for the next meeting. Unfortunately, when you went to the meeting you were shown the error of your ways (but obviously by this time you had already read and digested the book!).
You offer the book out so your spectators can test you. Your spectator opens the book to any page, reads out any line of code but misses out the last digit. Now (and with no memory work at all), you reveal the missing digit.
It now gets even harder for you, as your spectator chooses another page and reads out any line of code and misses out any one digit (so that is any digit from any line from any page). Without batting an eyelid, you can instantly know the missing digit (remember, no memory work or crib).
The Boards
After blowing their minds with the book, you introduce 8 boards (each board is a column of 4 digits, and they are double sided). You have your spectator choose any 3 of the boards and pop them in the stand. You hand them a calculator to work out the sum and the game is afoot, man against machine!
Now, with no calculator or hidden devices, you write down the answer. You can actually solve the sum in super human speed!
Everyone will be amazed BUT you up the game. You now have your spectator choose any 5 of the boards to create a sum. Once again you solve this in super quick time (in fact, you can solve it before they have even finished inputting the first line!). As you can imagine, there are so many opportunities for gags and humor at this point.
As your grand finale you can choose any of the killer endings above!
Human Abacus comes complete with all the quality props you need:
The custom designed book test, the handmade wooden stand, and the 8 high quality printed plastic boards.
You will absolutely love the Human Abacus. Remember, this is an effect you can learn in just minutes!!!
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
Long sun battery.
Color: Brown
Great. Looks good, feels great and the solar can wait 5 days w/o sun in a box.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
A nice durable non flashy field watch.
Color: Olive/Gunmetal, Color: Olive/Gunmetal
A nice looking, none flashy field watch. At 41mm it’s not too big and not too small. The sapphire crystal is a big plus on scratch resistance; and the screw in crown is a nice addition as well. If you’re looking for a low key, reliable solar powered field watch that is both comfortable, affordable and has durability built into it, this one will be hard to beat.
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Reviewed in the United States on November 8, 2025
★★★★★ 2
Keeps lousy time
Color: Silver-Tone/Black
I purchased this watch off Amazon Warehouse well below MSRP out of curiosity to see what Timex is doing in 2024. The specs are good - bead blasted stainless case, solar movement with quick set date and hacking, sapphire crystal, screwdown crown and 100m water resistance. The movement is Japanese, case and bracelet are made in China, and the watch is assembled somewhere overseas.
The good - the watch is lightweight and comfortable on the wrist. Price, even at full MSRP makes this an extremely good value for what you get. It is a good looking Flieger style watch. Once fully charged it is keeping good time. Case finish is well executed and without rough or sharp edges.
The bad - the lume is weak. When blasted with UV, it fades quickly and within 5 minutes it’s gone. The bracelet is low end, but expected at this price point. I swapped it out with a nice leather strap from my collection with better quality spring bars and it makes the watch look and feel higher end.
The Ugly - the second hand misses nearly all the chapter ring marks. The minute and hour hands are aligned, but that second hand seems to have a mind of its own. On my watch it lines up with chapter ring marks maybe 10% of the time, but it’s not consistent.
Sum up, for a sub $200 watch the specs are great and it’s a good looking comfortable watch. Just keep your expectations aligned with what you are paying for. It compares favorably to Orients & Citizens at this price, and offers better value than comparable competitors now that Seiko has gone upmarket. I like this watch. Just don’t compare it to a Swiss watch costing several times its price.
Update after a few months: I’m changing my rating to 3 stars. This watch keeps lousy time! It is loosing around 5 minutes per month. And it is fully charged. I have other Solar quartz watches from Citizen, Seiko and Vaer which maintain very good accuracy. But this Timex … defeats the purpose of a solar powered “grab and go” watch when you have to correct the time each occurrence you want to wear it.
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Reviewed in the United States on February 1, 2024
★★★★★ 5
Great Watch with Great Sapphire Crystal
Color: Olive/Gunmetal
Waited 2.5 years before reviewing. I love the gunmetal grey case, olive dial, and the exceptional sapphire crystal. The watch is still running great. During cold weather when wearing long sleeves, I make sure I charge the watch monthly by placing it under a table lamp for many hours because it died once due to no daylight charging. One problem is being able to see the minute markings. (The same watch with blue dial is much easier to read.) I also replaced the military-style band immediately with the excellent Archer 20mm Olive band (ARC-QRN-OLV20) and Archer 20mm Matte Gunmetal buckle ( ARC-BKL-GRYM20). I am only allowed to review once for this Timex model, so adding comments about the "Blue" version (TW2V03600JR). The blue version is the same watch but easier to view. It looks GREAT with the Archer 20mm Navy Blue band (ARC-QRN-NVY20).
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Reviewed in the United States on October 19, 2025
★★★★★ 3
I design flaw caused me to return it.
Color: Brown/Blue
Pros:
- Perfect case size.
- Sapphire crystal.
- Solar powered quartz.
- Large dial face
- Minute and second hands reach to minute track for precise reading.
- Great field watch design and proportions.
- Effective lume on hands.
Cons:
- Lume on small triangular hour markers is useless, and fades quickly.
- The hour numbers are not luminous.
- The dull peach color chosen for the hour markers, numbers and hands in dim lighting is very dull and thus hard to read.
- The dark blue color chosen for the dial is a dull hue that doesn’t really look blue, but just reduces the contrast between text and markers.
- A black dial and bright white markers and numbers would make the watch much more legible/ readable, and would look much better aesthetically. It is a shame that these choices were made on an otherwise perfect design.
- I was really excited that Timex finally seemed to get it when they came out with this series of models, but then they handicapped it with a dial that is only useable in bright light. What a shame.
I am returning the watch.
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Reviewed in the United States on July 23, 2022