Skin Diver CMM.20
NO U.S. TARIFF IMPACT: PRICES STAY THE SAME
FRENCH WATCHMAKING MANUFACTURE
Premium mechanical in-house caliber designed and manufactured in our workshops in Morteau (France). All other components are sourced from Switzerland within a 70km radius of Morteau. Assemblies, calibrations and checks carried out by our watchmakers in our Morteau workshops.
FREE DELIVERY WORLDWIDE
International shipping is offered free-of-charge for purchases as from 100€. All our shipments are handled by our partner UPS. You will receive an email with the parcel tracking number the day your watch leaves our workshops in France. Upon receipt of UPS's email, note that you have the option to adjust the parcel's delivery address and/or defer the date of receipt of your package, if necessary.
5 YEAR INTERNATIONAL WARRANTY
Your timepiece enjoys a 5 year international warranty from the date of shipment. It does not cover any damage on any part of the watch resulting from abnormal use, lack of care, negligence, accidents and incorrect usage.
14 DAYS RETURN
If you change your mind you have the possibility to request a refund within 14 days of receipt of your purchase. To proceed, please contact us through our 24/7 online chat on Yema.com by providing the email address used when ordering.
24/7 CUSTOMER SERVICE
For any pre-sales or after-sales questions, our multi-lingual customer representatives are available 24/7 through online chat on Yema.com.
Supercharged with our micro-rotor Manufacture caliber, the Skin Diver CMM.20 is the modern interpretation of the iconic skin divers released by YEMA in the 1960’s. Rugged, yet stylish.
-3/+7 SECONDS ACCURACY
Near chronometric performance and high resistance to magnetic fields and shocks.
70 HOURS POWER RESERVE
Enhanced power reserve thanks to innovating Tungsten micro-rotor and a large barrel.
ULTRA-THIN CALIBER
Smart architecture resulting in a contained thickness, perfect to equip sleeker cases.
FRENCH MANUFACTURE
Designed, manufactured, assembled and calibrated by YEMA's watchmakers within our Morteau workshops in France.
ULTRA LEGIBLE SKIN DIVER DIAL
The complex dial layout provides a distinctive design element and excellent legibility by showcasing triangular-shaped hour markers complete with Arabic numerals. The oversized applied markers extend into the center of the dial and are matched with a large, arrow-shaped minute hand, a long, pencil-shaped hour hand, and lollipop for the seconds.
All the elements are generously filled with vintage-inspired, lime-coloured Super-LumiNova and outlined in polished steel. Simply balanced, bold lumed markers and broad hands complement each other entirely.
The dial base has a slight brushed surface, reinforcing the old-school look, and contributing to accentuate the play of light of the polished steel raised markers and hands against the dial.
SAPPHIRE BEZEL & "PUSH-TO-UNLOCK" BEZEL-LOCK MECHANISM
The sapphire bezel is tinted to precisely match the dial, creating a unified and elegant appearance.
The updated bezel-lock mechanism marks a notable evolution in both engineering design and user experience, while preserving the iconic identity of the Superman line.
In contrast to the original system, where a clamp was positioned above the bezel and secured via the crown, the new bezel-lock mechanism is fully integrated beneath the bezel, offering a cleaner aesthetic and a more seamless tactile experience. This results in a sleeker profile and a more modern, minimalist design, staying true to the Superman's tool-watch heritage while enhancing its elegance.
ENHANCED USER EXPERIENCE
The bezel is now locked by default, preventing accidental rotation during diving or daily wear. To operate the bezel, one must push down on the bezel, which momentarily disengages the locking mechanism. While held down, the bezel can be rotated smoothly in either direction. Releasing the pressure causes the bezel to lock back into place, ensuring security without the need for external screws or clamps.
SAPPHIRE EXHIBITION CASE-BACK
Luxury watches can inspire for a variety of reasons. It’s not only the design and the style of the timepiece but also the technical aspects of a fine timepiece that can really blow watch enthusiasts away.
The sapphire exhibition case-back is an elegant feature for those who enjoy taking a look at the inner workings of their mechanical timepieces, in this case it allows wearers to catch a glimpse into the inner intricacies of the Manufacture micro-rotor caliber CMM.20, a rare caliber worthy of showcasing.
The sunbeam Côtes de Genève finish of the caliber’s bridges stands out, the fan-like pattern radiating from the center, capturing light beautifully and highlighting the craftsmanship behind the movement.
NEW SCALES SLIM BRACELET WITH MICRO-ADJUSTMENT
The iconic 1960s YEMA Scales bracelet has been slimmed down by 0.40mm so as to harmoniously integrate with the Skin Diver.
This new Scales Slim bracelet gradually tapers from 4mm at the buckle and naturally adapts to each wrist's shape. It features a fully brushed finish, providing an elegant visual continuity with the brushed steel case.
The new clasp features an on-the-fly adjustment mechanism, perfect for adapting to wrist swelling due to heat, activity, or time of day. The bracelet fit can now be adjusted instantly, without removing the watch or using any tools.
ADAPTIVE GLIDE MICRO-ADJUSTMENT SYSTEM
Inside the clasp, the final bracelet link is mounted on a precision-machined internal sliding rail. This rail enables smooth back-and-forth motion, allowing for up to 6mm of incremental adjustment in 1mm steps. For extra security, a dual-trigger system made of two push buttons unlocks the internal slide rail, enabling adjustment of the bracelet to the desired length. The mechanism is fully enclosed within the clasp, preserving the aesthetic and protecting it from dust and impact.
Conceived as a professional dive watch, the 39.5mm 316L stainless steel case (47mm lug-to-lug) stands out with its 20mm curved lugs and brushed finishes in contrast with the polished bevels.
Instantly recognizable by its unguarded crown, the steel case houses our CMM.20 micro-rotor caliber, while preserving a 30 BAR water resistance thanks to the sapphire exhibition case-back and the screw-down crown.
The Skin Diver features a 2.2 mm thick double-dome sapphire crystal, offering better readability, increased resistance and a resolutely vintage look and feel.
GRADE A SUPER-LUMINOVA
The hour markers, hands and bezel pipe are coated with Grade A Super-LumiNova for perfect readability even in the dark.
Skin diving (or free-diving) became very popular in the mid-20th century which led to a wide variety of utilitarian watches that were designed to be used during recreational diving. Water resistant skin diver watches were instantly recognizable: They featured a slimmer and smaller case than the professional dive watches, as well as unguarded crown, making them more ergonomic and easy to wear. On top of that, they were stylish enough to feel appropriate out of the water too, offering a dressier and more refined approach, some sort of rugged elegance.
A VINTAGE-INSPIRED CLASSIC
This modern interpretation of YEMA’s emblematic 1960s skin divers looks and feels great on the wrist, exuding a vintage vibe and a distinctive retro flair. Strapping on the Scales Slim bracelet, the Skin Diver CMM.20 wears incredibly comfortably and it’s stylish enough to feel appropriate out of the water too.
CALIBER
Micro-Rotor Caliber Manufacture Morteau 20
28 800 A/h
Self winding with ball bearings rotor
70h power reserve
Hours, minutes, seconds
Daily rate of -3 /+7 seconds per day
BEZEL
Bi-directional diving bezel with sapphire insert (0 to 60 graduation)
"Push-to-unlock" bezel-lock mechanism
Marker at 12 o'clock (luminescent) in Super-LumiNova C3 Grade A
CASE & CRYSTAL
Material: Vertical brushed 316L stainless steel with polished bevel
Diameter: 39.5mm
Thickness: 11.5mm
Lugs: 20mm
2.20 mm double domed sapphire crystal
DIAL & HANDS
Slightly brushed dial
Applied hour markers and hands in polished stainless steel
All hands and markers treated with Super-LumiNova C3 Grade A
BRACELET
316L stainless steel Scales Slim bracelet in brushed finish
Adaptive glide micro-adjustment system
CROWN
Screw-down crown with embossed YEMA logo
WATER RESISTANCE
30 BAR / 300 m / 990 feet
LOCAL PRODUCTION
Over the past few years, YEMA has made significant investments aimed at insourcing a good part of its production and constantly improving the quality of its manufacturing processes by implementing latest equipment as well as expanding and modernising its workshops and production lines. In addition, YEMA now works with new local partners in France and Switzerland within a range of 72km of its workshops, to secure a more responsible and higher quality production.
A DYNAMIC REGIONAL WATCHMAKING ECOSYSTEM
YEMA workshops are based in Morteau, the cradle of French watchmaking, a few steps from the Swiss watchmaking region. This cross-border watchmaking community concentrated along the Jura mountains has gradually transformed into a true regional ecosystem recognized as Intangible Cultural Heritage by the UNESCO in 2020.
JASON WASHINGTON
YEMA's signature #TimeofHeroes dates from 1970. It reflects the history and values of the brand and what it stands for. It tells the adventures of remarkable sportsmen and explorers who have achieved the extraordinary under the most extreme conditions.
A 2017 International Scuba Diving Hall of Fame honoree, Jason Washington is a professional scuba diver and underwater photographer featured in many print publications including the iconic National Geographic. Jason is an iconic figure in the Cayman Islands underwater community, he's at the origin of several projects which aim at protecting the delicate marine life found in the waters of the Cayman Islands and promoting sustainable tourism. Jason is a proud PADI ambassador and collaborates today with YEMA by testing the reliability of our dive watch prototypes in their natural environment.
In our commitment to quality, all timepieces equipped with a mechanical YEMA Manufacture movement enjoy an extended International Warranty period of 5 (five) years.
With your first purchase you become a member of YEMA's loyalty program YEMA Privilege. Enjoy exclusive offers and discounts that increase in value as you move up the tiers, free shipping, 24/7 Customer Service and 5 Years International warranty.
SEE ALL BENEFITS
Each watch is delivered in an elegant wooden case with a personalised International Warranty card.
In our commitment to quality, all timepieces equipped with a mechanical YEMA Manufacture movement enjoy an extended International Warranty period of 5 (five) years.
With your first purchase you become a member of YEMA's loyalty program YEMA Privilege. Enjoy exclusive offers and discounts that increase in value as you move up the tiers, free shipping, 24/7 Customer Service and 5 Years International warranty.
SEE ALL BENEFITS
Each watch is delivered in an elegant wooden case with a personalised International Warranty card.
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