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Omega Speedmaster Calibre 321 Ed White 39.7mm 311.30.40.30.01.001
Full set 2024
Original price was: $27,325.00.$22,995.00Current price is: $22,995.00.
Original price was: $22,475.00.$11,995.00Current price is: $11,995.00.
Price includes 10% GST for Australian customers
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The Omega Seamaster Planet Ocean Ultra Deep 6000M — from the bottom of the ocean to your wrist
In 2019, OMEGA was part of the Five Deeps Expedition — the first mission to reach the deepest point in each of the world’s five oceans. At Challenger Deep in the Mariana Trench, a prototype Seamaster Ultra Deep was attached to the submersible’s exterior, descending to 10,928 metres. It survived. OMEGA then engineered a commercial version of that watch, water-resistant to 6,000 metres — the deepest rating of any production dive watch, and one that exceeds its own ISO 6425:2018 saturation divers’ standard by a factor of six.
The Ultra Deep is not a watch that borrows dive aesthetics. It is a watch built for actual underwater pressure, in a case architecture specifically designed to handle it, tested in real ocean conditions before it went on sale.
The 215.30.46.21.06.001 is the orange bezel variant — the loudest, most immediately identifiable of the Ultra Deep configurations, and the one that makes the most direct statement. It pairs OMEGA’s polished orange ceramic bezel with a gradient grey-to-black dial and four orange Arabic numerals at 12, 3, 6, and 9. The effect is bold and deliberate: this watch does not attempt subtlety, and it does not need to.
The 45.5mm case is constructed in O-MEGASTEEL — OMEGA’s proprietary alloy, harder and more corrosion-resistant than standard 316L stainless steel, developed specifically for the Seamaster line. The case is 18.12mm thick, a dimension driven by the helical case construction and the multiple layers of pressure resistance required for 6,000-metre certification.
The orange ceramic bezel is unidirectional, with 120 detent clicks for precision timing underwater. The diving scale markings are applied using liquid ceramic filled with Super-LumiNova — a material that bonds permanently with the ceramic body, eliminating the risk of fading or peeling that affects painted or printed bezel scales.
The crystal is domed, protuberant, and heavily convex — arching outward from the bezel to counteract the pressure forces at depth. At the surface it creates a distinctive magnified bubble effect over the dial, visible from any angle. Both inner and outer surfaces carry anti-reflective treatment.
The gradient lacquer dial transitions from grey to deep black, giving the watch visual depth even in daylight. Four Arabic numerals in orange appear at the quarter hours — 12, 3, 6, and 9 — matching the bezel accent colour. All hands and applied hour markers are 18k white gold, coated with white Super-LumiNova for legibility in total darkness.
The caseback carries a Grade 5 titanium medallion with a laser-engraved Sonar emblem and the iconic OMEGA Seahorse — a reference to the Five Deeps Expedition equipment from which this commercial watch descends.
This is a well-preserved timepiece in Mint pre-owned condition.
The Calibre 8912 carries OMEGA’s Co-Axial escapement — the friction-reducing escapement geometry licensed from George Daniels that extends service intervals substantially compared to a conventional lever escapement. Two mainspring barrels mounted in series provide 60 hours of power reserve with a more consistent power delivery curve than a single barrel. The silicon balance spring is non-magnetic and unaffected by temperature variation.
The Master Chronometer certification means the movement was tested twice: first as a raw calibre by COSC to ISO 3159 chronometer standard (-4/+6 seconds per day), then again after casing by METAS — the Swiss Federal Institute of Metrology — across eight additional tests including magnetic resistance, power reserve accuracy, and water resistance simulation. The final certified accuracy is 0/+5 seconds per day. This is the strictest watch certification programme in Swiss watchmaking.
Calibre24 is a Perth-based dealer specialising in pre-owned Rolex, Patek Philippe, Audemars Piguet, Vacheron Constantin, and Richard Mille — and selected exceptional pieces from OMEGA Seamaster. Every watch is authenticated in-house before listing. This Ultra Deep ships fully insured to any address in Australia. Viewings by appointment in Perth. Trade-in and consignment available.
Is this Omega Seamaster Ultra Deep available in Australia? Yes. This 2023 Omega Seamaster Ultra Deep 6000M reference 215.30.46.21.06.001 is held in Perth by Calibre24. It ships fully insured across Australia including Sydney, Melbourne, Brisbane, and Adelaide. Viewings by appointment in Perth.
What is the Omega Seamaster Planet Ocean Ultra Deep 6000M? The Ultra Deep is OMEGA’s deepest-rated production dive watch, water-resistant to 6,000 metres. It was developed following the Five Deeps Expedition in 2019, during which a prototype Ultra Deep descended to the bottom of the Mariana Trench — 10,928 metres. The commercial version is rated to 6,000m, exceeds the ISO 6425:2018 saturation divers’ standard, and is built around the Co-Axial Master Chronometer Calibre 8912. The 215.30.46.21.06.001 is the orange ceramic bezel variant on an O-MEGASTEEL bracelet, with a gradient grey-to-black dial and orange Arabic numerals.
What is the difference between the Omega Ultra Deep references — 215.30.46.21.03.001, 215.30.46.21.06.001, and others? All O-MEGASTEEL Ultra Deep references share the same 45.5mm case, Calibre 8912 movement, and 6,000m water resistance. The last digits of the reference identify the dial and bezel combination. The .03.001 is the black ceramic bezel with a blue-to-black gradient dial. The .06.001 (this watch) is the orange ceramic bezel with a grey-to-black gradient dial and orange Arabic numerals. The .04.001 is a white dial with blue bezel. The .92 prefix indicates titanium case references with NATO straps from the original Five Deeps edition.
What is Master Chronometer certification and how does it differ from COSC? COSC chronometer certification tests a raw movement to ISO 3159 — the movement must average between -4 and +6 seconds per day over a 16-day period across multiple positions and temperatures. Master Chronometer goes further: after the movement passes COSC, OMEGA resubmits the complete cased watch to METAS — the Swiss Federal Institute of Metrology — for eight additional tests. These include testing under magnetic fields of 15,000 gauss, power reserve confirmation, water resistance simulation, and precision after full casing. The Master Chronometer standard requires 0/+5 seconds per day in the final cased state — stricter than COSC, and independently verified by a government metrology institute rather than by the brand itself.
What is O-MEGASTEEL? O-MEGASTEEL is OMEGA’s proprietary stainless steel alloy developed for the Seamaster line. It is harder and more corrosion-resistant than standard 316L steel, and provides greater structural strength for the Ultra Deep’s case architecture at depth. The same alloy is used for both the case and bracelet.
How deep can the Omega Ultra Deep actually go? The Ultra Deep 6000M is certified to 6,000 metres — 600 bar of pressure — and meets ISO 6425:2018 for saturation divers’ watches. For context, 6,000 metres is deeper than the average depth of all five oceans combined. The watch is not rated to the 10,928-metre depth of Challenger Deep (that was a prototype), but at 6,000m it exceeds the diving range of every crewed submersible currently in regular operation. For recreational and technical divers, 6,000m is an effectively unlimited specification.
What is the Co-Axial escapement in OMEGA watches? The Co-Axial escapement was invented by British watchmaker George Daniels and licensed by OMEGA, first used in a production watch in 1999. It uses a three-surface locking and impulse geometry rather than the conventional two-surface lever escapement design, dramatically reducing sliding friction inside the escapement. This means less lubrication is required, lubricants degrade more slowly, and service intervals are significantly extended compared to conventional movements. All modern OMEGA Co-Axial calibres, including the 8912, incorporate this escapement.
Does this Omega Ultra Deep come with box and papers? Yes — complete full set with original OMEGA box, inner tray, papers, and documentation.
Can I sell or trade in my OMEGA or other luxury watch? Yes. Calibre24 buys and takes consignment on OMEGA, Rolex, and other high-end references. Contact us for a current valuation.
Omega Seamaster Ultra Deep 6000M
Mint
Full Set with Box & Papers
2023
Grey – Black – Orange
45.5mm
O-MEGASTEEL
AUD
Shipping: Fully insured and express shipping available at a small cost.
Payment methods: Bank Transfer, EFTPOS, Credit or Debit (Master/Visa/AMEX) cards accepted. We do not accept crypto or cash payment.
Customers from any other country (outside of Australia) will be responsible to pay for any import taxes, customs and/or duties, as applicable, by their country laws. Our price doesn’t include any VAT, GST or any duties for any countries when the item is exported out of or shipped outside of Australia.
We are a licensed Australian Second Hand Watch Dealer, and one of the largest and safest Australian online watch platforms located in Perth, WA, and have delivered watches to watch enthusiasts across Australia and beyond. Please read our reviews across any platforms online to see what our customers say about their experience of an online purchase of a luxury watch from us.
Please refer to our website FAQ’s section for more details or reach out to us at Hello@calibre24.com.au with any queries.
Second Hand Dealer License No. SHD-79453.
Original price was: $27,325.00.$22,995.00Current price is: $22,995.00.
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Please think carefully while deciding to purchase a piece and ask any questions that you may have. We do not accept returns or change of minds. The returns don’t apply unless the item received is different in condition or details from the advertisement, or it’s damaged during the transit. Please refer to our return policy for more details.
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You are also welcome to authenticate the watch when you receive it from us. Our return policy is that you can return any watch you purchase from us within 01 day if you find any issues or if the watch is not as we described it to be, to receive a full refund.
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We take high resolution and multiple photos from each watch to showcase its true and as-is condition showing the watch from multiple angles. These photos form part of the listing so what you see in our photos, is exactly what you will receive when you purchase from us.
If, when we deliver the watch to you, you don’t find the watch in the condition as we’ve advertised it in, you can return it to us for a full refund — refer to our Returns policy.
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The overnight express is the name of the service used. It doesn’t guarantee that you will receive the watch the next day. However, the service does aim to deliver overnight and in most instances, we have delivered watches the next day. The delays on the other hand, are also possible and are not something that we haven’t seen before. We request ordering 3-4 business days in advance to allow for shipping delays, payment delays etc.
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When you make payment via Bank Transfer, we endeavour to ship the products at the same day or next business day when we receive your payment into our bank account. However, in some circumstances it can take up to 4-7 Days to ship an item, using the following carriers: Fedex/TNT, DHL, Auspost, Brinks or Ferrari.
When you make payment via Credit or Debit Card, we apply a “Security Hold” for 2 full business days from the date of the payment, before we will ship the item to you. Once the security hold is completed, we endeavour to ship the products the next day. However, in some circumstances it can take up to 4-7 Days to ship an item, using the following carriers: Fedex/TNT, DHL, Auspost, Brinks or Ferrari. Please click here to view the shipping policy
Due to the premium service we use, and the insurance for high value of watches, our shipping partners also require one day notice to book/process the shipments especially if you’re ordering a watch above $50,000 AUD in value.
Please get in touch with us prior to placing the order if your order is urgent and we can work out the quickest solution for you. You can email us on Hello@calibre24.com.au
Yes, you can inspect any timepiece we have in stock in our appointment-only boutique in the heart of Perth CBD. To request a viewing or purchase in person simply submit a viewing or purchase request through our product page for the timepiece you’re interested in, and we’ll organize a time for you.
Yes, we are a GST registered business for Australian customers, and all the prices include GST, unless otherwise specified in the listing. Please note that some watches we have available are listed for overseas clientele, which do not have the Australian GST component added into the listed prices. This is categorically mentioned on the listing as it applies and added to the price when sold to customers residing in Australia.
Yes we have sold and delivered countless watches overseas and globally. If you are located in the USA, then we can also offer you a price estimate for the watch delivered to you with all taxes and duties paid by us i.e. our price will include import taxes into the US and insured shipping – and you will pay nothing more to receive the watch.
We are not affiliated with any watch brand or watchmaker, and as such we are not Authorised Dealers for any watches that we sell. We specialize in buying and selling pre-owned and preloved watches, although most of the watches we deal in are in unworn and new condition.
We are an independent business, founded, run and managed by a watch collector and enthusiast Hafiz J Mehmood.