OC1 Pioneer

Which one will you get?The OC1 Pioneer Limited Edition is an advanced all-in-one dive computer featuring Oceanic’s exclusive Dual Algorithm™, wireless air-integration, digital compass, and so much more. All in a strong, lightweight titanium housing.

Please Note: OC1 units shipped after November 1, 2011 no longer feature Buddy Pressure Check.

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Which one will you get?

Inspired by diving pioneers, namely Bob Hollis, the driving force behind Oceanic and the innovator behind a 50-year career of equipment development, the Oceanic OC1 Pioneer redefines history with a tough yet timeless design. Each is part of an exclusive Limited Edition of only 1,000 individually numbered watches available worldwide. The OC1 Pioneer features strong and stylish upgrades including a titanium band durable enough to withstand the roughest conditions, an ultra-modern matte black finish and a lens made more rugged by a coating of liquid diamonds.

In honor of Hollis and all of diving's forward thinkers who inspire us to redefine the limits of what is possible, this exceptional timepiece comes packaged with Bret Gilliam's 489-page collection of interviews, "Diving Pioneers and Innovators." This impressive coffee-table book is signed by Hollis, and shares the achievements and most memorable moments of diving’s great legends.

We invite you to consider this offer and take advantage of acquiring this exclusive, one of a kind dive watch. Just like your favorite dive, it can’t be replicated; but will always be remembered.

Read more about the story behind the OC1 Pionner here.

*Click here for more details on the free Dive Computer Training!

30-DAY SATISFACTION GUARANTEE: We guarantee that at any time during the first 30 days of purchase, your Oceanic product fails to meet your expectations, that product may be exchanged by a participating Authorized Oceanic Pro Dealer. No questions asked.

  • Powered by Oceanic's Exclusive Dual Algorithm™ - Your choice between Pelagic DSAT (Spencer/Powell data basis) or Pelagic Z+ (Buhlmann ZHL-16C data basis)
  • Wireless Air Integrated Technology
  • Forged Titanium Body with 660 ft / 200 m depth rating
  • Advanced Digital Compass with North, Reference, Auto Home, and Declination Adjustment (see NOAA's NGDC geomagnetic chart)
  • Switch between 3 independent transmitters, with up to 3 nitrox mixes to 100% O2
  • Advanced watch functions including alternate time zone, stopwatch, lap timer, daily alarm, and countdown timer
  • Deep Stop with Countdown Timer
  • Gauge Mode with Run-Timer
  • User Upgradeable Firmware
Dual Algorithm Technology

Dual Algorithm Technology

Choose the one dive computer that’s liberal, conservative or middle-of-the-road.

Dual Algorithm™ technology lets you choose the decompression algorithm that best suits your diving needs without compromising safety.


repetitive deep and decrompression dive profile


Choose Pelagic DSAT for:

Liberal Recreational Diving

The Pelagic DSAT Algorithm safely maximizes dive time for repetitive, multi-level recreational diving. This algorithm relies on the human Doppler studies used to develop PADI’s Recreational Dive Planner (RDP), and has been the basis of our Dive Computers and other manufacturer's computer algorithms for many years. 

To add additional conservatism, you can also adjust the:

  • Tissue-Loading Bar Graph Alarm
  • Conservative Factor Setting


Choose Pelagic Z+ for:

Conservative Recreational Diving

When applied to standard recreational diving, the Pelagic Z+ Algorithm basis increases the conservative factor of the OC1 by 15-20%.

Liberal Repetitive Deep and Decompression Diving

The Pelagic Z+ uses the Buhlmann ZHL-16C database, which was conducted to meet the more rigorous demands of repetitive, cold-water decompression diving at altitude. The Pelagic Z+ mode maximizes dive times at depth without penalties.

Dive in sync with any buddy, anywhere.

Because the Dual Algorithm allows you to adjust the algorithm basis and its conservatism, you can adjust to closely match just about any other dive computer on the market, allowing you and any buddy to always dive in sync. Diving the same profile increases safety for both divers, and eliminates the need for one person to conduct a much longer or deeper stop when buddying with someone wearing a more liberal dive computer. On repetitive dives, there is no more waiting for the more conservative dive computer to clear. Both buddies will be ready to enter the water at the same time and can continue to dive the same profiles. You can’t control which dive computer your buddy wears, but you can control your ability to dive the same profile.

A note about deep stops:

Both algorithms allow (user ON/OFF option) credit for deep stops for No-Decompression dives in keeping with the data of Morroni et al (2004) and Bennett et al (2007).  No penalty is given if the diver skips the deep stop, but it is strongly recommended that a shallow safety stop be made with or without the deep stop in keeping with the experiments of Pilmanis (1975). 

It is important to note that neither algorithm provides deep stops for decompression dives since there is ample experimental data [Blatteau et al (2005), Gerth et al (2007), and Gutvik et al (2007)] that indicate that this practice often produces an increase in the risk of DCS.

For more infomation and detailed "Liberal vs Conservative" algorithm comparison charts - see Scuba Diving Magazine's ScubaLab "Digging Deep on 2009's New Dive Computers".

DSAT published & protected by Diving Science & Technology

Write Your Own Review

You're reviewing: OC1 Pioneer

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Customer Reviews

Review by patoc (Posted on 3/3/12)
Only drawback was having to send the titanium band back to California for adjustment. Flawless as computer, depth guage, pressure gauge, and compass. The wet activation and FO2 default are quantum leaps above the Data Trans Plus I traded in. Yes - traded in for a 20% discount through the dive shop.
Not only flawless functionallity, but beautiful piece of instrumentation I'm proud to wear daily.
makes the owner very proud
Review by Andre (Posted on 1/4/12)
Very beautiful watch. As an OC1, it is a phenomenal computer. The limited edition came with all the accessories (a transmiter, the interface, two bracelets -titanium and rubber- and the book "Diving Pionners and Innovators" signed by Bob Hollis). The black finish is very beautiful. I am proud of using it not just for cavediving, but almost everywhere.
Worth it.
Review by JRM (Posted on 11/29/11)
I bought the OC1 LE as my first primary air integrated computer, not only for open water recreational diving but also for my Tec Deep class. Its accurate compass, easy programming and gas switching and GORGEOUS look make this worth every penny. Get it while you can!
Review by Arthur (Posted on 10/19/11)
Great looking watch. I may upgrade my rating after a few dives. The dual time does not allow for 1/2 hour intervals for traveling in some regions. Not a big deal but for a $2K device it seems that this should not be an issue. I love the titanium band, but it is proving difficult to find anyone who can adjust it (remove links). This may be my fault for making the assumption a typical watch shop could do it. I suppose I will need to go to a dive shop instead.

All in all is is a beautiful and well made piece of instrumentation and am proud to own it.
one word...
Review by DLK (Posted on 9/20/11)

Do more with your data. Mac? PC? No Problem

DiverLog (mac) and OceanLog (PC) are fully functional dive computer management software solutions designed especially for Oceanic. Easily upload and save data recorded by your dive computer, or input your data manually. The software allows you to easily view, edit and manage dive data and history.

DiverLog for Mac Divers

Features Mac * Mobile * Cloud
Lite Full Free Subscription
Search, edit & manage dive data & photos
Save personal & certification data
Manage favorite locations
View interactive dive profile graphs
Add & register multiple dive comps
Firmware upgrades
Synchronize data Mobile, DiveCloud Mac, DiveCloud Mac, Mobile Mac, Mobile
Dive comp configuration & setup
Social sharing
Storage Unlimited ** Unlimited ** Unlimited ** 10 dives or 50 MB 2 GB
Cost FREE $24.95 $11.99 FREE $9.99 PER YEAR

* Currently available for Mac OSX 10.6 & IOS 5.0 or higher.   ** Limited only by the storage of your device.

To learn more and download the software, please visit eDiverLog.com

DiverLog-tn1 DiverLog-tn2 DiverLog-tn3

OceanLog for PC Divers

Features PC
Save personal data
Save medical & certification data
View, edit & manage dive data
Create dive graphs & memos for every dive
Add photos to dive logs
Firmware upgrades *
Manage favorite locations
Catalog dive gear
Add dive buddies & contacts
Search dive history
OceanLog Software
OceanLog 2.X (Release Notes)
OceanLog 2.X beta (Release Notes)
Computer Latest Firmware Computer Latest Firmware
OC1 F2B05 (6/11/12) Details VEO 2.0 1D (8/12/10) Details
OCi 1E.03 (12/2/14) Details VEO 1.0 1D (8/12/10) Details
VT 4.1 2B03 (5/29/12) Details Atom 3.1 2A (10/11/11)
Geo 2.0 1I (7/17/14) Details Pro Plus 3 1B (6/18/13)
VEO 3.0 1C (8/12/10) Details Pro Plus 2.1.1 3B (5/24/12)
VTX 1B (12/2/14) Details
Computer Latest Firmware
Atom 1.0 N/A


Windows 98/SE (32 BIT USB Driver) DOWNLOAD
Windows 2000 (32 BIT USB Driver) DOWNLOAD
Windows XP/Vista/7/8 (32 BIT USB Driver) DOWNLOAD
Windows XP/Vista/7/8 (64 BIT USB Driver) DOWNLOAD

OceanLog-tn1 OceanLog-tn2 OceanLog-tn3
30 30-Day Satisfaction Guarantee

We guarantee that at any time during the first 30 days of purchase, your Oceanic product fails to meet your expectations, that product may be exchanged by a participating Authorized Oceanic Pro Dealer. No questions asked.