Orient CEM65001B: Unless You’re Deep Sea Diving, Forget the Omega Seamaster

February 11th, 2010 | 10 Comments

The Omega Seamaster Planet Ocean 2201.50.00 and the Orient Mako CEM65001B share a similar appearance and features. So why does the Planet Ocean costs 11-15 times as much as the Mako?

Read on to compare and contrast the two watches from the inside out:


The Mako and the Seamaster have very similar cases. Both made of stainless steel, their diameters differ by only 1 millimeters.

Both cases also haves screwed-down crowns. The crown is the part of the watch, a small spindle, that adjusts the time and date. Screwed-down crowns are self-locking crowns, and are common in high-quality dive watches because this keeps the time from accidentally changing while underwater. Not having an accurate timekeeping tool underwater has potentially deadly consequences. Divers must know exactly how long they have been underwater, and must time their ascent well to minimize the danger of getting decompression sickness, better known as the ‘bends’.

One difference between the watches exists in their water resistance: the Mako is water resistant up to 200m, and the Seamaster is water resistant up to 600m. Before you think that more is better, consider this – the world scuba diving record is 609.6 meters. It was set by a Navy diver using the new Atmospheric Diving System (ADS) suit off the coast of La Jolla, California. This means that a water resistance that great is not necessary even for the most experienced diver.


Both movements have automatic (self-winding) mechanisms with power reserves lasting about 2 days. That means you can go up to 2 days without wearing your watch before it will need to be reset and rewound.

However, the Mako’s movement is produced entirely in-house, and the Seamaster is based upon the ETA 2892-2. The distinct advantages of an in-house watch movement are:

  • Distinct, specialized design
  • Reliability
  • Simplicity

Also, both watches feature unidirectional bezels, which turn in only one direction. Unidirectional bezels are useful for divers. Divers cannot rotate the bezel in the wrong direction because it could cause them to lose track of their dive time.

Choosing between the Seamaster and the Mako

Since the Orient Mako (CEM65001B) has all of the same qualities as the Seamaster and features an in-house movement, why does the Seamaster cost so much?

It probably has something to do with the 600m water resistance. But unless you’re planning on setting a diving record, you’re probably better off with the Mako. Use the extra money for a trip to The Island of Cozumel, the world’s top scuba diving location, where you can see coral reefs and marine life at depths up to 200m.

by Cassie Wallace

  1. 10 Comments | Tell us what you think!

  2. By Steve Poorman on Feb 11, 2010

    Lets see some pics of both watches.

  3. By Bruce Cales on Feb 11, 2010

    Looking at both watches, comparing the specs and weighing the cost. I think one would not even consider the Omega. The Orient watch is a very beautiful watch and one would be proud to wear it.

  4. By Joshua on Feb 11, 2010

    Great comparison. It makes a great point. Note however that the Planet Ocean 2201.50.00 is a chronometer but does not have a chronograph. A chronometer is a watch that is certified to have a certain accuracy whereas a chronograph is a stopwatch/timing device. Omega makes a Planet Ocean Chronograph, but that is not the 2201.50.00 that is pictured and featured in this article.

    So this is trivial and it just exemplifies the message as now the two watches are even more comparable! The Orient is certainly the better deal.

  5. By Matthew Wilson on Feb 11, 2010

    Okay — first, I’m a fan of Orient watches and have several (including the Mako). They are fantastic values.

    But I have to say, this is one of the most inaccurate articles I’ve seen on this blog yet.

    Several points:

    1. The Orient Mako does not have a helium escape valve. This isn’t an actual problem — the He escape valve is only necessary for professional saturation diving, and honestly, those divers probably aren’t wearing the Orient or the Seamaster. But to say that the Mako has a He escape valve is a lie.

    2. The Seamaster has a sapphire crystal, not a mineral crystal. The article claims that both have mineral crystals.

    3. As pointed out in the earlier comment, the regular Seamaster Planet Ocean (as pictured in the article) does not have a chronograph complication. It is a certified chronometer, which is a COSC certification for accuracy.

    And let’s not kid ourselves: the significantly higher price for the Seamaster has much more to do with the fact that it’s an Omega and less to do with the fact that the case can handle 600 meters. I have a Seamaster Aqua Terra that’s only good to 150 meters but costs even more than the referenced Planet Ocean (although it does have the spectacular new Omega 8500 movement).

    The Mako and the Seamaster are both fine watches, but if you hold both in your hand, you wouldn’t question why the Seamaster is a more expensive watch. Whether or not the differences actually *matter* to you, or matter enough to justify a couple thousand dollars, is of course a personal choice to which there is no right or wrong answer. Most people would probably agree with Ms. Wallace that spending $100 on a Mako is a much better use of their hard-earned cash than spending $2500 on a Planet Ocean.

    But in the mean time, I think Orient’s representatives should relay accurate facts in these types of articles rather than, apparently, making some things up (about both their own watches and the competition’s).

  6. By FernandoC on Feb 11, 2010

    The Mako is indeed a good value, since most people buying a diving watch will not ever dive at all. But the difference in cost has more to it than what you suggest… It is quality both inside and out. If you see both watches side to side, they are in a different leage in terms of finishing. Inside, the ETA 2892 may not be in-house, but lacks no quality at all. In fact, Mako has an unadjusted movement, and the ETA used on this particular Omega IS adjusted. For the owner this means more accuracy and reliability. All the Orients I have had, included the Mako, cannot be adjusted even if you wanted to, which is why they usually offer no better than +-30s/day. An adjusted 2892, can easely be put within +-5 sec/day. Being adjusted also means that these not in-house movements behave more consistently with changes of temperature, owner activity pattern, etc. I loved my Mako and it is a good value, but the comparison is not even fair for the Orient…

  7. By ORIENT Cassie on Feb 12, 2010

    Thanks for the comments. We are always working to improve and have adjusted the article accordingly.

  8. By FernandoC on Feb 13, 2010

    Very well said Mathew, hope they stop the nonesense. Besides, it appear that their representatives are not doing their homework… Orient is a good brand and does not need this making up to sell a good product.

  9. By Lex on Feb 22, 2010

    Cool watches, omega is very overpriced but looks nicer

  10. By Alain on Mar 31, 2011


    Does a bezel insert omega planet ocean (45mm) suit on orient mako II? Otherwise which bezel insert can suit on it ? Any customs on orient mako II?


  11. By Charlie Rock on Mar 18, 2013

    First of all the Orient Mako XL movement can be adjusted. Second the high price of the Omega is to pay for George Clooney’s and Brad Pitt’s Endorsements and advertising…….. While the OMEGA is a GREAT Looking timepiece. I do not think it is worth $4000.00. Something us level headed working class people cannot afford.

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