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Old 22 April 2018, 04:40 PM   #1
BlueJay73
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DRSD Mk3 from a Mk4?

Newbie here.
Anybody know how to tell a DRSD Mk3 from a Mk4?

A few days ago, a watch collector spotted the Sea-Dweller I was wearing and got excited, saying it is a double red Sea-Dweller. It was my dad's. He bought it new in Geneva at Rolex HQ in the early 1970's. Up until a few days ago, I didn't know it was anything special. I searched but could not find the answer to my question.

So, can anybody tell me how to tell a Mk3 from a Mk4 without taking off the case back?

Thanks,
Jim
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Old 22 April 2018, 04:52 PM   #2
BrazenC5
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Hi there, welcome. This site should be helpful.

http://www.drsd.com/watch-info/doubl...rsd-dials.html

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Old 22 April 2018, 05:04 PM   #3
BlueJay73
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Thanks Brazen. I did read that, but it didn't help me much.
If I can figure out how to post pics, maybe that will help you guys.

Thanks,
Jim
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Old 24 April 2018, 05:21 AM   #4
BlueJay73
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Hmmph. Site says I need 10 posts to post a link. I guess a picture is a link, because it won't let me post it.
Anyway, I thought it was a Mk4, but now I'm thinking it could as well be a Mk3.
Must be tough to tell w/o taking off the case back, because no one seems to know.
It's going to a Rolex dealer, so we'll find out. Stay tuned.
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Old 24 April 2018, 06:12 AM   #5
albaserver
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Take a look to the crown on the dial and the position of the L (from ROLEX) under the crown.

You'll find out the differences to discover mark 3 and mark 4.
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Old 24 April 2018, 08:00 AM   #6
BlueJay73
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The L in ROLEX is directly below the crown.
So, is that a 3 or a 4?
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Old 25 April 2018, 03:18 AM   #7
scooba
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some from Sheartime this may help you

http://sheartime.com/products/archiv...er=Sea-Dweller
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Old 25 April 2018, 04:22 AM   #8
RLX-lvr
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Mk3 is top pic

MK4 is bottom Pic. L centered under crown on the Mk 4. Also notice the difference in the looks of the crowns. My least favorite is the Mk4.
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Old 25 April 2018, 08:43 AM   #9
V.lats97nsx
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Just look at the shape of the crown. They are different. Also the red lettering is more pronounced brighter ok the mk4

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Old 25 April 2018, 08:48 AM   #10
albaserver
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Quote:
Originally Posted by BlueJay73 View Post
The L in ROLEX is directly below the crown.
So, is that a 3 or a 4?
The vertical line of the L is in the middle of the crown? If so it's mark 4.
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Old 25 April 2018, 10:53 PM   #11
BlueJay73
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Well, the jeweler who specializes in vintage Rolex says its a very good example of a Mk.4.
Thanks all who chimed in. And, thanks, Dad.
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Old 27 April 2018, 02:48 AM   #12
watchlovr
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The giveaway for me (if you can get a look through a loupe) is that the Mk4 red script is made up of tiny dots.
Edit, I had the pleasure of meeting DRSD.com's founder at the weekend, as the "Issued 3" meeting, lovely chap.
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