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The Omega Seamaster Planet Ocean 600M “Big Blue,” reference 215.92.46.22.03.001, is a 45.5 mm blue-ceramic dive watch with a blue rubber strap and a self-winding GMT movement. Its bold orange accents and substantial dimensions make it distinctive; the same dimensions make trying it on important. Omega specifies 600 m water resistance and a 60-hour power reserve, while WatchCharts labels the model discontinued and estimated its Canadian market value at C$10,372 on September 9, 2026.
Which Omega Big Blue is this?
This article covers the blue-ceramic Planet Ocean 600M GMT on a blue rubber strap: reference 215.92.46.22.03.001. Omega’s product sheet identifies a blue ceramic case, blue dial, blue rubber strap and ceramic foldover clasp. Omega lists an approximate total product weight of 141 g and a domed, scratch-resistant sapphire crystal with anti-reflective treatment on both sides. Omega product sheet
![[Omega] OMEGA Watch Seamaster Planet Ocean 39.5mm Master Chronometer Blue 215.30.40.20.03.001 Men's [Parallel Import], blue, Bracelet Type](https://m.media-amazon.com/images/I/41CgexEj7EL._SL160_.jpg)
There is a related blue-ceramic Big Blue on a leather strap, reference 215.98.46.22.03.001. It is a different reference, so check the complete number rather than relying on the “Big Blue” name alone. Omega’s leather-strap model listing
Planet Ocean Big Blue size: more than just 45.5 mm
Omega lists a 45.5 mm case diameter, but the other dimensions help explain the watch’s presence on the wrist. It is 51.50 mm from lug to lug and 17.38 mm thick, with 22 mm between the lugs. Those are substantial measurements; there is no universal wrist-size cutoff that determines whether it will suit you. If possible, try the watch on and assess how the full lug-to-lug length and height sit on your wrist, not just how the diameter looks on paper. Omega product sheet
#1 Best Overall
- Blue Dial with Arabic Numeral and Index Hour Markers, Minute Track, Date Window, Luminescent Hands and Hour Markers
- Stainless Steel Case and Bracelet, Case Diameter: 43.5mm
- Anti-Magnetic, Resistant to Magnetic Fields Reaching 15,000 Gauss
- Self-winding Automatic Chronometer Movement, COSC Chronometer Certified and Co-Axial Escapement
- Scratch Resistant Sapphire Crystal with Anti-reflective Treatment, Exhibition Case Back
Blue ceramic, with orange where it counts
The Big Blue’s color scheme is functional-looking but deliberately vivid: blue ceramic and a blue dial set off by orange on the bezel and small details. A 2019 hands-on account says Omega introduced the blue-and-orange ceramic GMT Planet Ocean at Baselworld in 2017. It describes the first 15 minutes of the bezel as a combination of orange rubber and ceramic, with orange rubber details also on the crown logo and helium escape valve symbol. The article relays Omega’s wording; it is not a direct interview quotation. Dive into Watches, “Hands-On: Omega Planet Ocean GMT ‘Big Blue’”
What the 8906 GMT movement does
Omega equips this reference with calibre 8906, a self-winding movement with GMT and time-zone functions. For a traveler, the practical point is that the watch is designed to track a second time zone as well as local time; Omega lists both GMT and time-zone functions, though the product sheet does not spell out a particular setting sequence. It also lists a date display.
Rank #2
- OMEGA Seamaster Planet Ocean 232.90.46.51.03.001
The manufacturer specifies a 60-hour power reserve, a Co-Axial escapement, a silicon balance spring, two barrels mounted in series and automatic winding in both directions. The rotor and bridges are rhodium-plated and finished with arabesque Geneva waves. Omega says the movement resists magnetic fields up to 15,000 gauss and identifies the watch as Master Chronometer certified and approved by METAS. These are manufacturer specifications, not independent measurements for this article. Omega product sheet
What “600 m” means in this watch’s specification
Omega rates the Big Blue at 60 bar, equivalent in its product sheet to 600 metres or 2,000 feet. The listed dive-watch features also include a screw-in crown, a unidirectional rotating bezel and a helium escape valve. These are the manufacturer’s stated specifications; they should not be read as a claim that this particular watch has been independently tested here or that its rating guarantees suitability for every underwater activity. Omega product sheet
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Its 45.5 mm diameter, 51.50 mm lug-to-lug length and 17.38 mm thickness make it a large, tall watch by the numbers. Whether that feels oversized depends on your wrist, preferred fit and tolerance for a watch with noticeable height. The 141 g approximate product weight may also be useful context, although the sheet does not specify a weighing method or condition. Try it on if you can; a diameter comparison alone cannot predict how the case will sit or feel.
Discontinued status and the Canadian estimate
WatchCharts’ Canadian model page labels reference 215.92.46.22.03.001 discontinued and gave a market estimate of C$10,372 as of September 9, 2026. That is a third-party estimate for Canada, not a live listing, completed sale price or guaranteed value. It should not be treated as a current quote or applied to a different region, condition or configuration. WatchCharts Canada model page
Rank #4
What to check when buying one
Because the name can refer to more than one configuration and the model is listed as discontinued, verify the details of the individual watch rather than assuming every listing matches the rubber-strap reference.
Quick Recap
Best Value
- Omega Seamaster Planet Ocean Automatic Men's Watch 215.30.40.20.03.001
- Confirm the full reference number, 215.92.46.22.03.001, and verify the serial and documentation with a trusted seller.
- Inspect the watch’s condition and ask for its service history.
- Confirm whether the box and papers are included, and read the seller’s return terms.
- Check the selling region and currency before comparing a price with a regional estimate.
- If considering a replacement strap, note that Omega lists a 22 mm lug width, but that alone does not establish compatibility with a particular strap, end link or clasp.
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.
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