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YEMA Skin Diver Slim CMM.20 12.24.99.SN.M3 diving watch
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Delivery time: Versand Mitte Februar 2026
14 days return policy
Free shipping & returns

YEMA Skin Diver Slim CMM.20 12.24.99.SN.M3 diving watch
All about the YEMA Skin Diver Slim CMM.20 12.24.99.SN.M3 diving watch
Skin Diver Slim Bronze CMM.20 – Icon reinterpreted
With the Skin Diver Slim Bronze CMM.20, YEMA presents a modern reinterpretation of its legendary Skin Diver dive watches from the 1960s. Powered by the in-house Micro-Rotor Manufacture caliber CMM.20, this model combines robust professionalism with an elegant, contemporary design. A watch that is as functional as it is stylish.
Classic Skin Diver design with maximum legibility
The dial has been consistently designed for optimal readability. The distinctive design with triangular hour markers and Arabic numerals gives the watch a unique character. The applied indices extend to the center of the dial and are complemented by a large, arrow-shaped minute hand, a slim pencil-shaped hour hand, and a lollipop seconds hand.
This balanced hand and index architecture ensures quick and clear time reading even under difficult conditions. The model is available either with grey dial in a limited edition of 200 pieces or with green dial without limitation.
Bronze case for professional use
Designed as a true dive watch, the Skin Diver Slim Bronze features a 39 millimeter bronze case distinguished by its vertically brushed surfaces and polished chamfers. The curved 20-millimeter wide lugs ensure an ergonomic fit on the wrist.
The case is protected by a 2.20 millimeter thick, double-domed sapphire crystal. The unidirectional rotating diver bezel features a glossy sapphire insert and has a minute scale from 0 to 60, including a luminous Super-LumiNova Grade A marker at 12 o'clock. The screw-down crown bears the embossed YEMA logo and, together with the construction, guarantees a water resistance of up to 30 BAR (300 meters).
With a case height of only 10 millimeters, the watch remains remarkably slim – a rarity among professional diver models.

Comfortable strap
The watch is worn on a FKM rubber strap, known for its durability and high wearing comfort. The brushed bronze pin buckle harmoniously matches the case material and completes the overall look.
Manufacture caliber CMM.20 – performance in ultra-slim format
Inside works the Micro-Rotor Caliber Manufacture Morteau 20 (CMM.20), fully developed by YEMA. This ultra-thin automatic movement impresses with an accuracy of –3 to +7 seconds per day, high resistance to magnetic fields and shocks, and a power reserve of 70 hours.
The innovative tungsten micro-rotor combined with a generously sized mainspring barrel enables this exceptional power reserve while maintaining a compact design. The intelligent architecture of the caliber makes it the ideal choice for slim case constructions like those of the Skin Diver Slim Bronze.
French watchmaking art from Morteau
The caliber CMM.20 is designed, manufactured, assembled, and regulated in France. All steps are carried out in the YEMA manufacture workshops in Morteau, where traditional watchmaking meets modern technology. Each watch stands for precision, reliability, and the claim of true manufacture quality.
Conclusion
The Skin Diver Slim Bronze CMM.20 combines the iconic design of historic Skin Diver models with modern technology, professional diving functionality, and genuine French manufacture expertise. Robust, slim, and stylish – a dive watch for enthusiasts who value authenticity and performance equally.
Specifications
- Movement
- Micro-rotor manufacture caliber CMM.20 (Manufacture Morteau 20)
- Automatic movement with tungsten micro-rotor
- Accuracy: –3 / +7 seconds per day
- Power reserve: 70 hours
- High resistance to magnetic fields and shocks
- Designed, manufactured, assembled, and regulated in the YEMA manufacture workshops in Morteau, France
- Case
- Bronze case with vertically brushed surfaces and polished chamfers
- Case diameter: 39 mm
- Case height: 10 mm
- Lug width: 20 mm
- Screw-down crown with embossed YEMA logo
- Water resistance: 30 BAR / 300 meters
- Bezel
- Unidirectional rotating diver's bezel
- Glossy sapphire insert
- 0–60 minute scale
- Luminous marker at 12 o'clock made of Super-LumiNova Grade A
- Glass
- Double-domed sapphire crystal
- Glass thickness: 2.20 mm
- Dial & hands
- Ultra-legible skin-diver dial
- Triangular hour markers with Arabic numerals
- Oversized applied indices up to the center of the dial
- Arrow-shaped minute hand
- Pencil-shaped hour hand
- Lollipop seconds hand
- Luminous material: Super-LumiNova Grade A
- Strap
- FKM rubber strap
- Brushed bronze pin buckle
- Variants
- Gray dial: limited to 200 pieces
- Green dial: available indefinitely
Specification of the YEMA Skin Diver Slim CMM.20 12.24.99.SN.M3 diving watch
Brand
YEMA
Category
Taucheruhr
Diameter
39mm
Strap
Kautschuk
Dial color
Grün
Dial
Indizes
Waterproof
300m
Glass
Saphirglas
Case
Bronze
Movement
Micro-Rotor Manufakturkaliber CMM.20
Type
Herrenuhr
Condition
Neu & OVP
The most important questions at a glance
FAQs
About David from WATCHDAVID
My name is David and I have been deeply involved with watches for many years – not only as a dealer but especially as a tester, photographer, and classifier.
Since 2018, I have been running WATCHDAVID as an independent watch project with reviews, videos, and genuine wearing experiences. Many of the watches you find here I have worn myself – often for extended periods.
WATCHDAVID.SHOP is deliberately kept personal. I only sell watches that I truly stand behind – no anonymous mass products, no dropshipping, no “quick trends.” Experience, transparency, and honest assessment are my priorities.
And yes: I am not an anonymous seller. I like good food, sneakers, and photography – and I have a noted weakness for Kinder Chocolate.
If you have questions or are unsure, feel free to contact me directly. I respond personally.
Shipping & Insurance
Within Germany and the EU, I ship free of charge. Shipping is done via DHL and insured up to 500€, 2,500€, or 25,000€, depending on the watch value. The watches are thus always sufficiently insured.
The delivery time can be found in the description and/or under the shopping cart button. Some watches are only produced after ordering, others are brand new and, for example, only available in a few weeks (so-called PRE-SALE), etc...
Cancellation & Return Shipping
You can cancel your purchase within 14 days of receiving the goods.
I will cover the costs for the return shipping for you.
IMPORTANT: Do not send the watch back yourself, I will send you the free return label.
Please simply contact me for this. david@watchdavid.com
It is also important that the watch is unworn and free of signs of use. After successful inspection, I will refund you the purchase price. The refund will be made using the same payment method you used for the purchase.
Authenticity & Condition of the Watches
I guarantee you that all watches I offer are exclusively new original products. The watches come directly from the manufacturer and have had no previous owners, unless I explicitly point this out (e.g. so-called PHOTO WATCHES).
As an official dealer, I offer you exclusively authentic products. These are offered in the original packaging, with warranty card, etc., just as they are delivered by the dealer. Everything in the so-called full set. One delivers more, another less...
Warranty & Service
All watches purchased from me come with the international manufacturer's warranty, which usually lasts two years. Some brands even offer a warranty of up to 5 years.
If a warranty case occurs, I will take care of the shipping to the manufacturer or the responsible service center for you and also organize the return shipment to you. In addition, I handle all communication with the manufacturer so that you don't have to worry about anything.
Even after the warranty period has expired, I remain your contact person and support you with service questions or repairs.
No response received?
You wrote to me via the contact form, through the price proposal, directly by email, chat, but you haven't received a reply?
Then please check your SPAM folder! Many providers are getting crazier and pushing more and more into spam.
I usually answer every inquiry within 24 hours at the latest. On weekends, it can sometimes take a bit longer. As a rule, I respond within a few minutes or hours.
Something can slip past me sometimes too. Or the technology doesn't work as it should. Feel free to write to me again at david@watchdavid.com
Mechanics - Sometimes things can happen there too
Before I ship your order, I carefully check each watch for visible defects.
If a problem should occur, such as damage during transport, please inform me immediately. I will do everything possible to quickly find a solution and ensure that you are satisfied.
My goal is to offer you not only high-quality products but also a first-class shopping experience. I look forward to welcoming you as a satisfied customer!




