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Description
MWC Swiss Made 500m (1640ft) Water Resistant Automatic Divers Watch in Stainless Steel With Sapphire Crystal, Ceramic Bezel and Helium ValveSKU Code: CH 500M SS SIL Introducing the MWC 500m water resistant diver watches with helium escape valve, part of MWC's latest elite range. These 100% Swiss Made watches are designed for both professional and recreational use, featuring: Impact Resistant Sapphire Crystal: Ensures durability and clarity. Scratch Resistant Ceramic Bezel: Ideal for a wide range of applications, from office environments to the most challenging outdoor activities,
SKU Code: CH/500M/SS/SIL
Introducing the MWC 500m water-resistant diver watches with helium escape valve, part of MWC's latest elite range. These 100% Swiss Made watches are designed for both professional and recreational use, featuring:
- Impact-Resistant Sapphire Crystal: Ensures durability and clarity.
- Scratch-Resistant Ceramic Bezel: Ideal for a wide range of applications, from office environments to the most challenging outdoor activities, including professional diving.
- High-Quality Movement: Equipped with a 25-jewel Swiss Ronda R150 automatic movement, offering a 40-hour power reserve and a hacking function for precise synchronization.
Key Features:
Helium Escape Valve:
- All MWC 500M diver models come with a helium escape valve, crucial for saturation divers. Helium molecules, being extremely small, can penetrate the watch seals under high pressure. This valve allows helium to escape during decompression, preventing internal pressure buildup that could damage the watch.
Why Helium?:
- Helium is used in deep-sea mixed gas diving to avoid the negative effects of nitrogen, such as nitrogen narcosis. The helium escape valve ensures the watch remains functional and undamaged during and after deep dives.
Usage:
- While typical divers may not need a helium valve, it's essential for deep dive watches like the 500M range to ensure durability and reliability under extreme conditions.
Dimensions and Specifications:
- Movement: 25 Jewel Swiss Ronda R150 Automatic with hacking function
- Water Resistance: 500m / 1640ft
- Helium Escape Valve
- Crown: Screw Down Locking
- Case Width: 44mm
- Case Thickness: 13.4mm
- Crystal Type: Shatter and Scratch Resistant Sapphire with Anti-Reflective Coating
- Lug to Lug: 52mm
- Case Material: 316L Stainless Steel
- Bezel: 120-click unidirectional with ceramic insert
- Illumination: Swiss Super-Luminova C3 on markers and hands
- Strap: 22mm Silicone/Rubber
Benefits of Sapphire Crystal:
- Durability: Synthetic sapphire is highly resistant to shattering and scratching, making it the preferred material for high-end watch crystals.
- Strength: Heat-treated to remove internal stresses, enhancing its strength and durability.
- Appeal: Favored by military and security personnel, police officers, and outdoor enthusiasts. Over 70% of our customers belong to these groups.
- Comparison: While hardened mineral crystals are more durable than regular glass, they don’t match the durability of sapphire. The superior strength of sapphire is why it's also used in the latest iPhones and high-end watches.
These attributes make the MWC 500M diver watch an excellent choice for those seeking a robust, reliable, and stylish timepiece suitable for both professional diving and everyday use.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 1
Terrible.
Scent Name: Berry, Size: 40 Count (Pack of 1)
These do not work at all.. I used two at night and they just dissolve and my mouth is still super dry. I tried one during the day just to see and they do not help you salivate at all really. Definitely would recommend trying something else.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Xylimelts
Scent Name: Berry, Size: 40 Count (Pack of 1)
"Xylimelts - I have dry mouth from what I thought was a new medication. I stopped the medication about two weeks ago and it has not improved. I am continuing to use these until I follow up with my doctor. At first I tried these using one disk and it did not seem to work. I tried them again using two and it works a lot better. So, I now use these two disks at a time. If I use them at night, they seem to last about 4 hours. If i use them during the day, they last about 30 minutes. The effects do not last all that long during the day but I do also use Act lemon lozenges. The package says that you can put them on the gums but I put them on the roof of my mouth. I have had no issues getting any of them to stick.
Flavors - At my local stores the only flavor is mint. It is way too strong. Using the mint ones would irritate my mouth after a while. Unfortunately, that seems to be the only flavor that most dry mouth products are.....mint. So my quest began to locate products that are not mint. I found these here on Amazon. They come in multiple flavors. Here is my breakdown of the flavors and my thoughts on each.
Mild mint (4*) - Better than the regular mint but still mint. It is as described and the mint is not as strong.
Slightly Sweet (5*) - Probably my favorite alternative to the mint. They are exactly as described. The have a slightly sweet flavor. It is not overwhelming.
Berry (5*) - This was a nice change. It again is a slight berry flavor. Not overpowering or overwhelming.
Cinnamon (1*) - This is probably my least favorite. The flavor was ok (it tastes like a very mild fireball) but it didn't seem to lubricate very much and after it was gone it felt like my mouth was drier than before.
Orange (4*) - It has a pleasant orange flavor.
Sensitive/unflavored - I have not tried this one yet. I probably will not. The reviews of the change in adhesive makes me leary to try it."
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Reviewed in the United States on September 2, 2025
★★★★★ 3
Mostly works, but..........
I use these at night for sleeping with a CPAP. I am a mouth breather, so my CPAP mask is a full face mask, thus there is constant airflow going into my mouth all night long. While these tablets do help with reducing dry mouth, they only last about 4-5 hrs before they fully dissolve - which does not get me through a full night of sleep. Using two tablets instead of one only gives me roughly one additional hour. If you wear a CPAP mask, you also need to be careful of exactly where you place the tablets, because it will be quite uncomfortable if you mask ends up pressing on the tablet. If the tablet does not adhere well upon initial placement, you pretty much need to fully dry the tablet before re-attempting placement. If the brown side is already wet when you place it against your gums, there is a much higher chance of it just sliding off, instead of sticking. Overall, while not completely eliminating the issue, they do at least reduce the dry mouth problem during sleep.
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Reviewed in the United States on January 21, 2025
★★★★★ 5
Stays put and dissolves slowly. Orange flavor is nice.
If you have to use something overnight for dry mouth definitely get these. I use one nightly with my mouth guard. The orange flavor is very nice and it dissolves slowly overnight. It's small enough to do the trick, but not be overpowering. It stays put. And it works. Definitely notice the improvement inside my mouth.
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Reviewed in the United States on November 13, 2025
★★★★★ 5
Great content
Format: Paperback
Our group is finishing up this study. I have enjoyed the discussion questions and the notes that accompany the scripture readings
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Reviewed in the United States on November 16, 2024