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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11The standard YEMA Navygraf Pearl CMM.20 is a 39 mm automatic dive-style watch with a mother-of-pearl dial and bezel, YEMA’s CMM.20 micro-rotor movement, and a published 200 m water-resistance rating. Its compact dimensions and slim profile distinguish it from chunkier dive watches; its listed price depends on whether you choose the steel bracelet or FKM strap.
Which Navygraf Pearl is this?
This article covers the standard Navygraf Pearl CMM.20, reference 22.25.20.66.SN.M, as identified on YEMA’s official product listing. The page offers a steel-bracelet and an FKM rubber-strap configuration; check the selected configuration and reference before ordering.
YEMA also lists a separate limited edition, reference 22.25.20.55.SNL.M, which the company describes as numbered to 200 timepieces. That edition is not the standard reference discussed here.
Case size, materials and wear
The standard model’s 316L stainless-steel case measures 39 mm across, 9.75 mm thick and 46 mm from lug to lug, with 19 mm between the lugs. YEMA describes the case as vertically brushed with polished bevels. The crystal over the dial is double-domed sapphire, and the exhibition case-back is sapphire as well.
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- Waterproof for daily life: -- Stainless steel durable waterproof case cover, Hand Wash, Rain Day, Sweating, NO Problem. In general, withstands splashes or brief immersion in water, but not suitable for swimming
Those dimensions make the watch relatively compact in diameter and notably slim for a dive-style design. The 46 mm lug-to-lug measurement helps describe how much wrist space the case spans, while the 19 mm lug width is relevant when looking for a strap. That width alone does not guarantee that every aftermarket strap or end shape will fit; confirm compatibility before buying one.
Mother-of-pearl dial and bezel
YEMA specifies mother-of-pearl for both the dial and the unidirectional diving bezel. The bezel has a resin coating. Because the dial material is natural, YEMA notes that its appearance varies from one watch to another: the exact pattern and visual effect will not be identical across examples.
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CMM.20 movement and stated performance
The Navygraf Pearl uses YEMA’s self-winding Calibre Manufacture Morteau 20, or CMM.20. The company describes it as a micro-rotor movement with a ball-bearing rotor and functions for hours, minutes and seconds. YEMA says the caliber is designed, manufactured, assembled and calibrated by its watchmakers in Morteau, France.
| Published movement specification | YEMA’s stated figure |
|---|---|
| Power reserve | 70 hours |
| Frequency | 28,800 A/h |
| Daily rate | -3/+7 seconds per day |
These are manufacturer specifications from the product listing, not independently measured results for an individual watch.
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- 3 Hand, Date
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Water resistance: the published 200 m rating
YEMA lists the Navygraf Pearl at 20 BAR / 200 m / 660 feet. This is the manufacturer’s published rating; the listing alone does not establish independent dive testing or provide a separate assurance about a particular watch’s condition or suitability for a specific dive. Consult YEMA’s documentation and care guidance for use and maintenance.
Price, warranty and returns
On the US-facing YEMA listing accessed in 2026, the steel-bracelet configuration displayed $2,490 and the FKM strap configuration displayed $2,190. These are page-snapshot prices, not a guarantee of current pricing, stock or availability in another region. Check the selected configuration and checkout total before purchase.
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- Pre-Owned Omega Constellation 123.10.27.20.57.001
- This watch is Certified Pre-Owned in New or Like New condition. Watch may show subtle scratches. The case should exhibit no dents or dings and the bracelet should show little wear or stretch. The watch keeps time according to manufacturer’s specification and needs no mechanical service.
- Box and papers
- Watch Year : . All images shown are of the actual watch.
- Watch comes with 2-year WatchBox warranty
The same product page states a five-year international warranty beginning from shipment and a 14-day return period from receipt, subject to terms. It lists exclusions for damage associated with abnormal use, lack of care, negligence, accidents or incorrect usage. Review the current warranty and return terms applicable to your location before ordering.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is the Navygraf Pearl CMM.20 worth considering?
It is a plausible choice for someone seeking a relatively slim, 39 mm automatic watch with a distinctive natural-material dial and bezel, a micro-rotor movement, and a manufacturer-published 200 m rating. The most useful points to weigh are the natural variation in mother-of-pearl, the configuration-specific price, and the fact that the stated movement performance and water resistance are manufacturer specifications rather than independent test findings. The product details and current terms are available on YEMA’s standard-model listing.
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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.
