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The Rado DiaStar Original Automatic Skeleton R12162153 is a 38 mm mechanical watch for buyers who want the movement visible from both sides of the case. It combines an R808 automatic calibre with an 80-hour power reserve, a Ceramos bezel, a steel bracelet and a stated 100 m water-resistance rating. Rado’s current US list price is $2,300. It is the strongest DiaStar choice if you like an openworked dial and a mid-size presence; buyers who prefer a smaller watch or a conventional dial should compare the 30 mm, 35 mm and standard 38 mm DiaStar Original references before ordering.
What is the Rado DiaStar Original Skeleton R12162153?
R12162153 is the skeleton version of Rado’s DiaStar Original Automatic line. Its purpose is visual as much as functional: cut-outs in the black dial expose the automatic movement, while a transparent sapphire caseback provides a second view from the wrist’s underside. The case uses stainless steel with a scratch-resistant Ceramos bezel, and the bracelet is also stainless steel.
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Rado positions the watch as a full-size DiaStar rather than a compact ladies’ model. The official specification gives a 38.0 mm case diameter, 11.9 mm thickness and 133 g weight. An independent technical listing describes the case at approximately 38 × 45 mm, a useful indication of the total footprint from lug to lug; Rado’s 38.0 mm diameter and 11.9 mm thickness remain the primary measurements.
Key specifications
| Specification | R12162153 detail |
|---|---|
| Reference | R12162153 |
| Case diameter | 38.0 mm (Rado specification) |
| Approximate overall length | About 45 mm, according to an independent technical cross-check |
| Thickness | 11.9 mm |
| Case and bracelet | Stainless steel |
| Bezel | Ceramos |
| Crystal and display back | Sapphire crystal with anti-reflective coating; transparent sapphire caseback |
| Dial | Black openworked (skeletonized) |
| Luminous material | Super-LumiNova details |
| Movement | Rado automatic R808 calibre |
| Power reserve | 80 hours |
| Antimagnetic component | Nivachron hairspring |
| Movement adjustment | Tested in five positions, according to Rado |
| Water resistance | 10 bar (100 m) |
| Weight | 133 g |
How does the 38 mm case fit on the wrist?
The 38 mm diameter is a versatile middle size, but the watch does not wear like a simple 38 mm round case. Its DiaStar profile and roughly 45 mm end-to-end span occupy more wrist length, while the 11.9 mm thickness gives it a noticeable mechanical-watch presence under a cuff. A narrow wrist should be checked against the lug-to-lug dimension, not diameter alone.
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The steel construction and 133 g mass create a solid, jewelry-like feel. That suits the original DiaStar’s emphatic design, but it will feel more substantial than a thin dress watch. The bracelet spreads the weight across the wrist; sizing it correctly is more important than chasing a nominal diameter.
Rado’s black openworked dial also changes the visual impression. The dark background and exposed bridges create more contrast and texture than a plain dial, so the watch can appear bolder than other 38 mm references. Super-LumiNova details provide low-light visibility, but the skeleton openings mean the dial is intentionally busier than a conventional display.
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- Small to medium wrists: measure your wrist and compare the approximately 45 mm case length with a watch you already wear. The diameter may look moderate while the length reaches farther across the wrist.
- Medium to larger wrists: the 38 mm case gives a balanced proportion without the oversized footprint of many contemporary sports watches.
- Bracelet users: have the bracelet sized by a dealer or watchmaker so the clasp sits centrally and the case does not rotate.
- Strap buyers: a retailer listing gives an 18 mm lug width. Confirm the lug measurement and the shape of the end links before ordering any replacement; width alone does not guarantee a clean fit.
What movement does the R12162153 use?
The watch uses Rado’s automatic R808 calibre. It stores up to 80 hours of power when fully wound, so it can continue running through a typical weekend off the wrist. The movement has a Nivachron hairspring for improved resistance to everyday magnetic fields, and Rado says it is tested in five positions rather than adjusted in only one orientation.
Those features matter because the skeleton design makes the calibre the main reason to buy this reference. Sapphire windows on the front and back let you see the regulating system, bridges and rotor in operation. Rado describes the construction as allowing the automatic movement to be appreciated in full technical elegance while retaining the 80-hour reserve.
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What an 80-hour reserve means in daily use
- If the watch is worn regularly, wrist motion keeps the automatic winding system supplied with energy.
- If you remove it Friday evening after it is fully wound, the stated reserve is long enough to cover most of Saturday and Sunday without stopping.
- When it does stop, putting it on the wrist and moving normally will restart the automatic system; a watchmaker can explain the correct manual-winding procedure for this calibre if you need a quicker restart.
An 80-hour figure is a power-storage specification, not a promise of a particular daily rate. Accuracy can vary with position, temperature, how fully the watch is wound and the condition of the movement.
Is the skeleton dial easy to read?
Readability is a deliberate compromise. The black openworked dial and luminous details give the watch a strong identity, but exposed components add visual lines behind the hands and indices. If you want the fastest possible glance at the time, a conventional DiaStar dial is the safer choice. If you enjoy seeing mechanical construction, the extra texture is the point rather than a defect.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallThe sapphire crystal has anti-reflective coating, which helps reduce glare from the front. Sapphire is highly scratch resistant in normal use, but no crystal or bezel should be called scratch-proof. Avoid placing the watch crystal-down on rough surfaces and keep it away from unnecessary impacts.
Is the DiaStar Original Skeleton good for swimming?
Rado rates R12162153 at 10 bar, or 100 m, and an independent retailer repeats that rating. That stated rating makes ordinary surface swimming a more reasonable use case than for a watch rated only for splash resistance, but it is not a blanket guarantee for every water activity.
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- Follow Rado’s care instructions and ensure the crown is fully secured before contact with water.
- Rinse the case and bracelet with fresh water after exposure to salt water or chlorinated water, then dry them with a soft cloth.
- Do not operate the crown while the watch is wet.
- Avoid treating the 100 m number as permission for high-impact water sports, diving or uncontrolled depth changes.
- Have seals checked at service intervals or after a shock, battery-like case opening, or any sign of condensation under the crystal.
Water resistance is a test rating for a new, properly sealed watch. Gaskets age, impacts can affect sealing surfaces, and water resistance can diminish without an obvious external symptom.
How much does the Rado DiaStar Original Skeleton cost?
Rado’s current US e-shop lists the R12162153 at $2,300. That is the US reference price shown with Add to Cart and Reserve in Store options, not a worldwide price. Regional Rado pages use local currencies, and the final amount can change with local taxes, currency conversion, shipping and dealer stock.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsA US authorized-dealer listing also shows $2,300 and states that the manufacturer’s five-year warranty is included. Confirm the warranty terms, start date and seller status on the invoice you receive; warranty coverage is tied to the selling channel and documentation.
What to check before paying
- Verify that the listing identifies the exact reference R12162153, not another DiaStar Original skeleton or a similarly named quartz model.
- Check whether the quoted price is before or after sales tax and whether delivery, import charges or regional fees apply.
- Confirm that the seller is an authorized Rado dealer if the manufacturer warranty is important to you.
- Match the product photographs and specifications: 38.0 mm diameter, 11.9 mm thickness, Ceramos bezel, steel bracelet and sapphire display back.
- Keep the dated receipt, warranty card and any sizing record. They can be needed for future service or a warranty claim.
How does it compare with smaller and conventional DiaStar Original models?
The right alternative depends on whether your priority is visible mechanics, a compact case or a simpler dial. The broader DiaStar Original family includes automatic, diamond-set and quartz references, so “DiaStar Original” alone does not identify the same size or movement.
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| Model or family reference | Case size | Movement and reserve | What changes versus R12162153 |
|---|---|---|---|
| R12162153 Skeleton | 38.0 mm | Automatic R808; 80 hours | Openworked dial, sapphire front and back, Ceramos bezel, 100 m rating |
| Standard 38 mm DiaStar Original (R764) | 38 mm | Automatic R764; 80 hours | Conventional dial presentation; skeleton visibility is not stated for this reference |
| DiaStar Original 30 mm R586 Diamonds | 30 mm | Automatic; 48 hours | Smaller case and shorter reserve; diamond-set model, not the 38 mm skeleton configuration |
| DiaStar Original 35 mm R12413533 | 35 mm | Automatic; power reserve not stated | Smaller footprint; dial construction and water-resistance details are not stated in the available specification |
| DiaStar Original quartz variants | Varies by reference | Quartz; reserve is not applicable | Battery-powered timekeeping and different case or dial configurations; exact dimensions depend on the reference |
Choose the 38 mm skeleton when seeing the R808 through both sapphire windows is central to the purchase. Choose the 30 mm or 35 mm models when case length is your limiting factor. Choose the conventional 38 mm automatic when you want the same broad case category and an 80-hour automatic reserve without an openworked display. Because the family references differ, compare the exact reference number, not only the collection name.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What are the bezel, crystal and bracelet made from?
The bezel is Rado’s Ceramos material, paired with a stainless-steel case and bracelet. Ceramos and sapphire are chosen for scratch resistance, but they are not invulnerable: a sharp impact can damage a bezel edge, crystal or bracelet component even when the surface resists ordinary scuffs.
The transparent sapphire caseback is functional as well as decorative. It gives a second view of the R808 and makes the watch more engaging when removed from the wrist. The front sapphire crystal carries anti-reflective coating, so aggressive polishing or abrasive cleaning products should be avoided.
The listed 18 mm lug width supports a range of replacement straps, but integrated bracelet end links can be reference-specific. Measure the watch and compare the replacement’s end-link geometry before buying; forcing an incompatible part can mark the case or leave the bracelet insecure.
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What are the main advantages and trade-offs?
Reasons to buy
- You want a distinctive 38 mm DiaStar with a visible automatic movement rather than a conventional dial.
- The R808’s 80-hour reserve suits owners who rotate watches over a weekend.
- Nivachron and five-position testing add useful technical features beyond the visual design.
- Ceramos, sapphire and a steel bracelet provide a durable-feeling construction for daily wear.
- The 100 m rating offers more water tolerance than a dress-only watch, provided the seals and crown are maintained.
Reasons to reconsider
- An openworked dial is inherently busier and may be slower to read than a solid dial.
- The approximately 45 mm case length and 133 g steel build may feel large or heavy on a narrow wrist.
- The $2,300 US price is a substantial premium over simpler or smaller DiaStar variants.
- Water resistance is a rating, not a substitute for seal checks or careful use around water.
- Replacement bracelets and straps require exact lug and end-link compatibility.
How should you inspect and care for the watch?
On delivery
- Check the reference engraving or paperwork against R12162153.
- Inspect both sapphire surfaces for chips, cracks, coating damage or dust visible through the openworked dial.
- Confirm that the bracelet closes securely and that the clasp and links are free of sharp edges.
- Set the time using the seller’s instructions and observe that the hands move cleanly without contacting one another.
- Store the receipt and warranty documents with photographs of the watch and serial information.
During ownership
- Wipe steel and Ceramos surfaces with a soft, lint-free cloth; use mild soapy water only when the crown is secure and the watch is known to be properly sealed.
- Keep the watch away from solvents, strong detergents and unnecessary magnetic sources.
- Do not strike the case against doorframes, counters or sports equipment. Impact is a greater risk to seals and crystal edges than ordinary desk wear.
- After swimming, rinse away salt or chlorine and dry the bracelet links, clasp and caseback.
- Use an authorized service center or a qualified watchmaker for pressure testing, bracelet work and movement service.
Who should buy the R12162153?
Buy it if you want a recognizable 38 mm oval DiaStar design, appreciate seeing an automatic calibre through the dial and caseback, and accept the visual and physical presence of a 133 g steel watch. The combination of R808 mechanics, an 80-hour reserve, Ceramos and sapphire gives the model a clear identity beyond its price.
Before purchase, put wrist fit ahead of the collection name. Compare the approximately 45 mm length with your current watches, decide whether the openworked display remains legible to you, and confirm that the US price or your local equivalent fits your budget. If any of those conditions fail, the 30 mm, 35 mm or conventional 38 mm DiaStar Original references may be a better match.
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Frequently Asked Questions
Is the $2,300 price guaranteed at every Rado retailer?
No. It is the current US reference price shown by Rado, while regional pages and dealers can use different currencies or pricing. Taxes, currency conversion, shipping and stock status can change the amount you actually pay.
Can I replace the bracelet with an 18 mm strap?
A retailer listing identifies an 18 mm lug width, so 18 mm straps are the starting point for compatibility. Check the end-link shape, spring-bar clearance and clasp arrangement before ordering; an 18 mm width by itself does not prove that a particular bracelet will fit securely.
Does the skeleton version come with a five-year warranty?
A US authorized-dealer listing states that the manufacturer’s five-year warranty is included. Verify the seller’s authorization, warranty card and activation or dated-purchase requirements, because coverage depends on the documented sales channel.
What should I look for if condensation appears under the crystal?
Stop exposing the watch to water and have it inspected promptly by an authorized service center or qualified watchmaker. Condensation can indicate a seal problem even when the case and crystal look undamaged, so drying the outside alone does not resolve the underlying risk.
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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.
