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Description
Supertech Dual Valve Spring 30/21.80mm / 21.30 / 15.50mm / 96lb at 40.4mm / CB 22.8mm - Single - SPR-H1020DDescription: Supertech Dual Valve Spring 30 21. 80mm 21. 30 15. 50mm 96lb at 40. 4mm CB 22. 8mm Single Category: Engine Components, Valve Springs; Retainers, MFR SKU: SPR H1020D Proposition 65: Some parts are not legal for use in California or other states with similar laws and regulations More Information
Description: Supertech Dual Valve Spring 30/21.80mm / 21.30 / 15.50mm / 96lb at 40.4mm / CB 22.8mm - Single
Category: Engine Components, Valve Springs; Retainers, MFR SKU: SPR-H1020D
Proposition 65: Some parts are not legal for use in California or other states with similar laws and regulations - More Information...
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
Based on 545 reviews
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Product Reviews
★★★★★ 5
nice quality
Style: Bi-fold
it was a small gift
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 5
Very nice wallet!
Style: Bi-fold
Very nice wallet!
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Reviewed in the United States on May 26, 2026
★★★★★ 5
I love it
Color: Black/Silver
I need a watch has analog display (easy for me to read) and digital function (need the alarm and the countdown) also shows the day-date (the day has to be 3 digits e.g. Sunday is "sun" instead of "su"). I know I am very demanding, but it is just me, LOL.
Have bought this watch for a couple of days. Yes, it fits all my needs.
Pro:
1) Light weight, fair value materials, price is low and quality is fair. The glass is just a piece of plastic which is how I felt, but I put a packing clear tape on it and cut the edge off as my home made scratch protection.
2) There are 4 push buttons, except the center one for light, the other 3 seemed like are metal with rough surface which generate enough friction to hold and push it down.
3) It has Telememo, World Time, Snooze, two daily alarms, Count Down, hourly signal, and Stop watch functions.
4) 10 years battery which is better than solar battery (if solar battery never die), or it will be more expensive to replace a solar.
5) Casio always uses 4 screws to secure the back plate, much easier to replace the battery than other brands.
6) It has a smaller case (44 mm) with a larger LED display.
Neutral:
1) Telememo, I don't know who needs this, because smart phones can do much more. Also, I try not to buy a watch with Waveceptor, smart phone can always pick up the correct time right after the airplane touch down. However, Waveceptor can auto reset the watch, but the problem is if it can receive the signal? and for how long? I still prefer the old school way to manually adjust.
Con:
1) There is no pull out button to set up the analog, and this watch can only go forward. For example, if analog is 2 min faster, then I have to forward the hand for 11 hours and 58 min to correct it, that is a lot of pain, even you can hold both C & D to have the hand auto advance. Or, it only need to go backward for 2 min.
2) It can show two time zones time, but the digital day-date only matches with the digital time. One can not set the day-date to match with the analog.
Overall, I love this watch, and there is a metal version "AMW830D-2AV".
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Reviewed in the United States on August 6, 2019
★★★★★ 5
Nice, old school style Casio watch!
Color: Black/Silver
Nice watch for the price! It looks a lot like the old school G-Shock that I had in the 1990's. Of course it is not built like a tank like the
G-Shock was. However it is a very nice everyday watch with plenty of useful functions. It even comes with a 10 year battery! Bonus! I bought the "Used, Like New" option for a VERY discounted price and it still came in the original packaging with the instruction booklet.
Go ahead.
Get one.
You know you want to.
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Reviewed in the United States on November 22, 2025
★★★★★ 5
Casio watch
Color: Black/Green
Still working after some years. Great product
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Reviewed in the United States on April 12, 2026
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