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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteThe YEMA Navygraf Slim CMM.20 is not yet identifiable from an authoritative product listing in the available sources. YEMA does list a different Navygraf using its CMM.20 micro-rotor movement: the Navygraf Barracuda CMM.20 Limited Edition. Its specifications help explain the caliber, but its dimensions, diving features, price and edition size cannot be treated as specifications for the unverified Slim.
What is the YEMA Navygraf Slim CMM.20?
The exact reference, release date and original specifications for a watch called the “Navygraf Slim CMM.20” remain unconfirmed. YEMA’s official Navygraf CMM.20 page is for the Navygraf Barracuda CMM.20 Limited Edition, reference 21.26.20.66.SNL.D6. YEMA also lists a Wristmaster Slim CMM.20, but that is a different watch. Neither listing establishes the Navygraf Slim’s dimensions or design.
That distinction matters: the word “Slim” in the title is not enough to establish a case thickness, and specifications from another CMM.20 model should not be carried over by inference.
What is the CMM.20 micro-rotor movement?
YEMA expands CMM.20 as Calibre Manufacture Morteau 20 and describes it as a self-winding movement with a micro-rotor. On its Navygraf Barracuda CMM.20 listing, YEMA specifies a ball-bearing rotor, a frequency of 28,800 A/h, a 70-hour power reserve and a daily rate of -3/+7 seconds. These are manufacturer-published specifications for the Barracuda listing, not independent test results or confirmation of the Slim’s exact configuration. YEMA’s Navygraf Barracuda CMM.20 product page
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How accurate is the YEMA CMM.20?
YEMA publishes a rate of -3/+7 seconds per day for the CMM.20 on the Barracuda product page. That figure is a stated specification; the examined sources do not provide an independent timing test. It should not be presented as a measured result for a Navygraf Slim.
How long is the power reserve?
The Barracuda listing gives the CMM.20 a 70-hour power reserve. The available evidence does not establish whether every CMM.20 watch, including the exact Navygraf Slim in the title, has identical specifications.
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What does the verified Navygraf Barracuda listing specify?
The Barracuda is a useful reference point for understanding the Navygraf family, but it is a distinct limited-edition variant. Its official US listing gives the following details:
| Specification | Navygraf Barracuda CMM.20 Limited Edition |
|---|---|
| Reference | 21.26.20.66.SNL.D6 |
| Case | 39 mm, 316L stainless steel |
| Thickness | 9.75 mm |
| Lug width | 19 mm |
| Crystal | Double-domed sapphire, 2.50 mm |
| Dial and bezel | Forged carbon |
| Water resistance | 30 bar / 300 m |
| Edition size | 400 pieces |
| Price shown | $2,590 sale price on the current US listing accessed in 2026; not established as the Slim’s price or the Barracuda’s original launch price |
The same Barracuda page describes a screw-down crown, a unidirectional bezel with 120 clicks and a red 20-minute countdown sector, C1 Grade A Super-LumiNova, a NATO strap and a steel-bracelet option, as well as a collaboration with the Marine Nationale. These are Barracuda-specific details, not verified features of the Navygraf Slim. See the current YEMA Barracuda listing
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How thin is the Navygraf Slim?
No authoritative thickness for the Navygraf Slim was established. The 9.75 mm figure belongs to the 39 mm Navygraf Barracuda CMM.20, so it cannot answer how thin the Slim is. The separate Wristmaster Slim CMM.20 listing is also not a substitute for a Navygraf specification. Until YEMA identifies the exact Navygraf Slim reference and publishes its dimensions, its case thickness and diameter should be treated as unknown.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What is established about YEMA’s manufacturing?
YEMA says its watchmakers design, manufacture, assemble and calibrate the CMM.20 in its Morteau workshops. Franceclat’s 2026 account describes YEMA as founded in Besançon in 1948 and places its local manufacturing operation in Morteau. It says that since 2022 the company has machined movement components such as plates and bridges, set stones, assembled movements and cased watches; it also identifies CMM.10, CMM.20 and CMM.31 among YEMA’s developed calibres. Franceclat’s 2026 account of YEMA
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This describes YEMA’s manufacturing activity and regional context, not the origin of every component in a particular watch. The exact balance of in-house and supplier-made parts for the unverified Navygraf Slim reference is not established.
Quick Recap
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- Premium Materials For Comfortable Wear: The band and case of these waterproof watch for men are crafted from high-quality stainless steel, Featuring an adjustable band that fits various wrist sizes, combining durability with comfort. These men's wrist watches boast a slim profile design (Only 9mm thick) paired with a mesh stainless steel band that adjusts to wrist size, offering breathable comfort for all-day wear
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What to verify before buying a Navygraf Slim CMM.20
- Ask for the full reference number and an official product page or documentation identifying it as a Navygraf Slim.
- Confirm the case diameter, thickness, water resistance, crystal, dial, bezel and included strap or bracelet for that reference rather than relying on Barracuda specifications.
- Check that the movement is identified as CMM.20 and verify the stated reserve and rate against documentation for the specific watch.
- Confirm edition size, warranty and service terms with the seller or YEMA; the Barracuda’s 400-piece limit does not establish the Slim’s production run.
- For price, distinguish the current price for the exact reference from any historical or launch price. The Barracuda page’s sale price is not evidence of the Slim’s price.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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