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MASTOP

MASTOP Men Automatic Mechanical Watches Full Steel Waterproof Mens Watches with Calendar

  • Based on 621 reviews
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Availability: 17 left in stock
Fulfilled by Amazon
Arrives Friday, Jul 17
Order within 10 hours and 39 minutes
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Color: Silver Black Blue


Is Discontinued By Manufacturer ‏ : ‎ No


Package Dimensions ‏ : ‎ 3.15 x 3.15 x 2.7 inches; 4.8 ounces


Item model number ‏ : ‎ WI8066


Department ‏ : ‎ Mens


Date First Available ‏ : ‎ August 13, 2017


Manufacturer ‏ : ‎ MASTOP


Product Warranty: For warranty information about this product, please click here


Best Sellers Rank: #134,760 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #452 in Men's Wrist Watches


#452 in Men's Wrist Watches:


Display: Analog


Watch Movement Type: Mechanical (automatic)


Additional Features: Date


Power Source: Automatic


Strap Type: Bracelet


Water Resistance Depth: 30 Meters


Sport Type: Walking


Clasp Type: Deployment Clasp With Safety


Water Resistance Level: Waterproof


Embellishment Feature: Crystal


Closure Type: Magnetic


Style Name: Mechanical


Shape: Round


Band Color: Silver


Theme: Sports


Face Style: Round


Character: Fashion


Brand Name: MASTOP


Model Name: WI8066


Model Number: WI8066


Item Weight: 0.14 Kilograms


Manufacturer: MASTOP


UPC: 613852034460


Manufacturer Part Number: W123


Unit Count: 1 Count


Age Range Description: Adult


Band Material Type: Stainless Steel


Case Material Type: Stainless Steel


Crystal: Mineral Glass Mirror


Case Diameter: 40 Millimeters


Band Width: 22 Millimeters


Case Thickness: 12 Millimeters


Bands: 1


Warranty Type: Limited


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Very nice for a $30 automatic
Color: Silver Black
My son was looking for an automatic mechanical watch after getting frustrated with his quartz watches having dead batteries, so I got him this as a starter mechanical watch. We knew going into the purchase that for $30 we shouldn't expect to much. To our surprise the watch exceeds our expectations. Overall, the look and feel seems to be solid, better than I expected. Even the rotating bezel has a nice feel to it and decent sounding clicks. Once it's running it keeps decent time, and he says it is comfortable to wear and he likes the looks, so it's being used regularly. My son's one complaint is that the power reserve seems a bit limited. The watch has a hand winding feature, so it is possible that the auto-wind feature just doesn't supply enough over the day. I think it might be best to hand-wind before wearing, but it's not my watch and the fact that he has to set it in the morning isn't an issue. All that being said, we like the watch and would recommend it for someone who wants to dip their toe into the world of mechanical watches and stop dealing with batteries. The watch we purchased has the stainless steel bracelet and it arrives at full size, which was too big. Fortunately they included a device to drive the pins out to resize the bracelet. This device is probably good for three of four re-sizing's, it's just very cheap, but it got the job done. If you are considering trying an auto-winding mechanical watch feel free to give this one a try. It's actually very impressive considering the low cost. ... show more
Reviewed in the United States on February 9, 2025 by M. Hansen
    • Worst watch ever!!! Don't buy! Worst watch ever!!! Don't buy!
Color: Silver Black Blue
Review Image by NPales
Purchased last month, watch don't keep time,date is not aligned with the magnifying window. Ordered a replacement and it was even worst. When setting the time on the replacement the whole watch movement pull to the right witch means that something was missing inside the watch or not properly sit. To make it short, seller is not aware of quality issues. It is sad because the watch is very nice looking. Definitely will not buy from Mastop seller anymore. ... show more
Reviewed in the United States on October 4, 2024 Reviewed in the United States on October 4, 2024 by NPales
    • Way better than expected-The timekeeping is outstanding.
Color: Silver Black Blue
For the record I tinker on watches as a hobby. Why am I buying this then?. I wanted a beater automatic with a date-and waterproof. Waterproof on older watches is very hit-miss and they are intrinsically more valuable than I care to wear on a casual basis. I have a timing machine so I checked. This watch as delivered was very close to perfect in poise & beat error. Over the 1st 3 days I gained / lost 3 seconds and now it has settled down to a -1 sec a day. That's way better than most expensive watches. The cons: The band is ok-especially for the price. But the link pins are solid not split-making sizing a royal pain-hard to drift out properly. And the fake Pepsi bezel rotates one way & clicks well-but is not secure and loose on one side. That's it so far. The amazing: The poise-or positional error-is near zero. This makes the watch keep good time in any position. In general the Asian movements have good timekeeping . This one however is near perfect and that is so very hard to do. I can only assume they have a clever machine that does the balance error adjustments on the balance wheel. ------------ No problems of note but just a week in. If it blows up or has a odd failure I'll report back. By any measure this is a tremendous value for a mechanical automatic watch. ... show more
Reviewed in the United States on March 22, 2019 by Carl in Oregon
    • Nice watch. I have spent a lot more for a lot less. Nice watch. I have spent a lot more for a lot less.
Color: Silver Black
Review Image by Dave's Thoughts
I have worn a Seiko 5 for many years. My Seiko had started to run very fast, so I started looking for a replacement. At first I was skeptical about a 20 dollar automatic watch, but after reading a few reviews I took a chance and purchased the Winner. I received the watch very quickly and it was packaged in a plain brown box. Upon opening the box, I found the watch tucked inside a foam compartment ticking away. I went ahead and set the date and time, removed a few links, and started wearing it right away. As of this writing, I have used it every day for 3 weeks, and it has kept perfect time. For an automatic, it didn't seem to have very much reserve. It may have been an issue with just starting to use it, but the first few nights, it would stop running before morning. So I started winding it a little when I take it off at night. Since doing that, it hasn't stopped a single time. The watch itself seems very nice. It's basically a Rolex Diver replica made in China. The stem seems a little easy to pull out, so I'm afraid it may not last very long. But so far I haven't had any issues with it. The band is low quality, but it still looks nice as well. I'm super happy with this purchase. ... show more
Reviewed in the United States on August 1, 2019 Reviewed in the United States on August 1, 2019 by Dave's Thoughts
    • Not terrible for first automatic watch
Color: Silver White
For the price you can't have high expectations. It doesn't look to bad and it's hard to find an automatic watch for such a low price . For the price it's nice and at distance looks nice.The bezel feels like if you push it hard it will pop off . The bracket feels cheap and tin like and the date window on the glass sticks out. With that being said if you are expecting a very cheap beater automatic watch this will do well it wears on the wrist okay . Looks half decent on nato or leather straps if you're planning on a daily wear option be aware it doesn't seem like it can take to much damage ... show more
Reviewed in the United States on February 25, 2023 by Ryan Schiavone
    • Fun Toy Fun Toy
Color: Silver Green
Review Image by Eric L.
First of all, you have to have realistic expectations. This is a $20 mechanical watch, which is insane. I'm told you can buy the bare Chinese movements for about $4; presumably it's even cheaper when buying in bulk. How they are making something so complicated so cheaply is a mystery. But, the band is soft and cheap, the movement feels delicate when winding, and there is no -- zero -- waterproofing. If you get it wet, you can count on the parts inside rusting and the watch stopping in a couple of weeks. Anyway, as you can see from the picture of my timegrapher, in dial up position it gains 5 seconds a day, has a 0.1 millisecond beat error (which is excellent), and a robust amplitude of 261 degrees, which means there is a good amount of force in the hairspring. These results are better than some much more expensive watches I own, like my Hamiton Khaki King. Things change for the worse when I move the watch into different positions on the timegrapher; of course, when you wear a watch, it doesn't sit dial up very much... it runs in a variety of positions as you move your arm about as you wear it. But on average, the watch keeps pretty good time for a mechanical watch at any price point. More expensive watches fare better at different positions (crown down, dial down, etc.) than this one does, likely because the movement here has never been calibrated. I also notice that the timegrapher shows some noise on the second beat. Not sure what that is, but it lends to the impression that the movement is a little iffy. As I mentioned, winding the watch feels delicate, and I’m not sure the clutch is engaging properly, so it may be possible to over wind, and thus damage it. Similarly, the autowind rotor seems reluctant to turn (possibly related to the clutch), so I expect it won’t be long until the watch no longer winds itself and must be hand wound every day. But, that has not happened yet. Another issue with almost any watch that has a date complication: make sure, when setting the date, that the hour hand is not between around 9:00 and 3:00 (p.m., but you can’t tell which a.m and which is p.m. until the date changes). That is around when the date change mechanism is engaged in the watch, and if you try to change the date during that time, you will break the watch. That is particularly true with an iffy movement like this one. On my copy, the date begins to change at around 10:00 p.m. and doesn’t really finish until around 3:00 a.m. That’s not great, but not unexpected in a $20 watch. Once the date has completely changed, it’s a bit off center in the date window. The watch itself feels feather light, like cheap costume jewelry, but it looks nice from a small distance. It rattles and generally feels like a toy and I don’t expect it’ll be running this time next year. But you never know. The thing is though, to me this is worth $20. I have enjoyed the experience of checking out what a $20 watch is like, and since it keeps good time, I think I’m going to add it to my collection and give it some wrist time. It’s the only electric green watch I have; I think it will look shocking on a bright orange silicone band. Used as an every day watch, I don’t think it would make it very long. But added to a collection and worn occasionally, it should make it for a long enough time that $20 becomes a crazy value. So I would say this: if you’re ok with parting with $20 for a working mechanical watch, and understand that it is not built to last, this is a fun thing to play with. ... show more
Reviewed in the United States on July 6, 2020 Reviewed in the United States on July 6, 2020 by Eric L.
    • Don’t, Just Don’t. Look Elsewhere.
Color: Silver Black Blue
Don’t purchase this watch. I didn’t expect a lot from a watch that’s this inexpensive. I got even less than expected. The watch randomly stops and starts. It will keep time for a few hours then just stops in the 1:00 position. Then if you shake the watch it starts back up. It’s almost impossible to set the date without moving the hands through full rotations because pulling the crown into the proper position is non existent. Lastly the movement is loud. ... show more
Reviewed in the United States on April 12, 2026 by Lance Philip
    • A good watch for those who want to buy their first automatic watch
Color: Silver White
I bought this watch out of curiosity to own an automatic watch at an affordable price, and I was pleasantly surprised. I've had the watch for over a month now, and it's working perfectly. A good purchase for those who want their first automatic watch at a reasonable price.
Reviewed in the United States on February 20, 2026 by Jose R.

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