1970s Seiko 6138-001X Chronograph Variations Review
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  1. #1
    Member theimitator's Avatar
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    1970s Seiko 6138-001X Chronograph Variations Review

    There is a lot written about these great watches on the web, so I thought I'd try to centralize some of the information here as well as give a review of the watch and my history with it.

    First, many call this watch the "UFO". I can understand why when I see it on my wrist, seeming to hover several millimeters above, but there is no real documentation to back up this name. The other name it has is the "Yachtman's Chronograph", which is used to describe it in this ad (pulled from SCWF):



    The series consists of models 6138-0010, 6138-0011 and 6138-0017.

    The 0010 is the Speedtimer version, available in Japan, while the 0011 and 0017 were produced for the international market. I think the differences between these two are strictly cosmetic; the 0011 has a red sweep hand, lighter orange checkerboarding on the sub dial, and no mention of water-resistance on the dial, whereas the 0017 has a yellow sweep, darker checkering and is marked 70m water-resistant.

    PIctures of all three can be viewed here: http://www.csce.uark.edu/~jgauch/photos/dir1/chrono/6138-0011/index.html

    My history with these watches started as I lurked on the forums. They are quite eye-catching and sporty. The black/red color combo and checkering suggest auto racing, and the one big/one small sub dial design is unique and compelling -- your eyes keep staring at it while your brain tries to compensate for the subtle difference. But I only became really curious about it when about six months ago I saw the main character in this movie sporting it -- it's a hard watch to misdiagnose!



    Then it really got bumped up to the "I. Must. Have. This. Watch." level when I handled one in an antique market in Spain. The guy wanted too much, and that only lit a fire under me to find one when I got back home. After finding an orphaned one on the 'Bay and giving it some love, my quest was over:



    The watch measures 40mm across, without the crown, and an impressive 44mm from lug to lug. The crown is pretty big, too, and I wonder why they didn't recess it into the case even 1mm more. It's a thick timepiece at 13mm, too:



    It'll never fit under a shirtcuff, that's for sure! I wanted to compare it to my Omega SMPC:



    The Omega's lugs curve down, but the Seiko's are hidden, which give it that floating appearance. What adds to that, and makes it a very comfortable watch for activity, is that the case angles up from the bottom to the midpoint:



    The finish is brushed, but crisp-edged:



    I'm a big fan of the bracelet, too. It's sort of a hybrid fishbone/oyster. 18mm wide at the lug, it immediately flares out to 21mm only to taper to 13mm at the clasp:



    The readability of the dial is very good, too. The flat black makes everything else pop, especially the white hands and yellow sweep (or any color). The sub dials are checkered, as I mentioned, and provide a clever way of timing 12 hour events: if the top sub reads in a colored portion of the hour, the colored minute indicators should be used in the bottom, and likewise for the silver blocks:



    The sweep ticks away at 1/5 second intervals under a mineral glass crystal.:



    To sum:

    This watch is an eye-catching vintage Seiko powered by the steady 6138 workhorse. It's a big hunk of metal on your wrist that you'll never forget is there, but it'll never be because it's in the way.

    The only problem with these variations is that once you get one, you'll want to get the other two. You've been warned
    Attached Images Attached Images          
    Last edited by OldHippie1968; September 6th, 2009 at 01:18. Reason: Attached thumbnails


    Bell & Ross BR 126 Officer Silver
    DOXA SUB 750T GMT Professional
    DOXA SUB 1000T Military Professional
    Omega Dynamic Chronograph 5250.50.00
    Omega Dynamic Date 5250.50.07
    Omega Seamaster GMT Gerry Lopez LE 2536.50.00
    Omega Speedmaster Broad Arrow 3551.20.00
    Omega Speedmaster Professional 3570.50.00
    Omega Speedmaster X-33 Gen 1 3290.50.00
    Seiko 6105-8119 (on vintage rubber)
    Seiko 6105-8119 (on Seiko super oyster)
    Seiko 6138-0017 UFO
    Seiko 6138-0030 Speedtimer
    Seiko 6138-0049 Brown Bullhead
    Seiko 6139-6040 (first WIS purchase)

    My Old Blog

    http://watchmenowandthen.blogspot.com/



  2. #2
    Member OldHippie1968's Avatar
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    Re: 1970s Seiko 6138-001X Chronograph Variations Review

    Excellent review!:thanksfor posting.

    Cheers!
    Mike
    "What a long, strange trip it's been?"(Hunter/Garcia ca. 1970)

  3. #3
    Member poeta_m1's Avatar
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    Re: 1970s Seiko 6138-001X Chronograph Variations Review

    Thanks for your reviews!
    Here are some pictures of my 6138-0011:







    Bye!!
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    Last edited by OldHippie1968; September 6th, 2009 at 01:22. Reason: Attached thumbnails
    Jordiher and tiha like this.

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  4. #4
    Member theimitator's Avatar
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    Re: 1970s Seiko 6138-001X Chronograph Variations Review

    molto carina da polso!


    Bell & Ross BR 126 Officer Silver
    DOXA SUB 750T GMT Professional
    DOXA SUB 1000T Military Professional
    Omega Dynamic Chronograph 5250.50.00
    Omega Dynamic Date 5250.50.07
    Omega Seamaster GMT Gerry Lopez LE 2536.50.00
    Omega Speedmaster Broad Arrow 3551.20.00
    Omega Speedmaster Professional 3570.50.00
    Omega Speedmaster X-33 Gen 1 3290.50.00
    Seiko 6105-8119 (on vintage rubber)
    Seiko 6105-8119 (on Seiko super oyster)
    Seiko 6138-0017 UFO
    Seiko 6138-0030 Speedtimer
    Seiko 6138-0049 Brown Bullhead
    Seiko 6139-6040 (first WIS purchase)

    My Old Blog

    http://watchmenowandthen.blogspot.com/



  5. #5
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    Picture Re: 1970s Seiko 6138-001X Chronograph Variations Review

    Here's mine 0014, which I suppose was available on the Japanese market considering the datewheel.

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    Last edited by OldHippie1968; September 6th, 2009 at 01:24.

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    Re: 1970s Seiko 6138-001X Chronograph Variations Review

    thii my UFO
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  7. #7
    DAO
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    Re: 1970s Seiko 6138-001X Chronograph Variations Review

    Quote Originally Posted by stevchrly View Post
    thii my UFO
    I like it on the leather strap.
    Do you mind telling me about it?

  8. #8
    Member sempervivens's Avatar
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    Re: 1970s Seiko 6138-001X Chronograph Variations Review

    Thanks for the interesting review, well done.

    The series consists of models 6138-0010, 6138-0011 and 6138-0017.
    Somebody replied that there is a 6138-0014 as well. I've never seen that, but I have seen a 6138-0012 from 1979 (see picture in attachment).

    This also leads to the conclusion that the 6138-001x had a long production life (1970-1979).

    18mm wide at the lug
    I believe this should be 19 mm.
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  9. #9
    Member theimitator's Avatar
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    Re: 1970s Seiko 6138-001X Chronograph Variations Review

    Quote Originally Posted by sempervivens View Post
    I believe this should be 19 mm.
    Thanks for catching the oversight! (For some reason I can no longer edit the original.)

    Glad you enjoyed the review.


    Bell & Ross BR 126 Officer Silver
    DOXA SUB 750T GMT Professional
    DOXA SUB 1000T Military Professional
    Omega Dynamic Chronograph 5250.50.00
    Omega Dynamic Date 5250.50.07
    Omega Seamaster GMT Gerry Lopez LE 2536.50.00
    Omega Speedmaster Broad Arrow 3551.20.00
    Omega Speedmaster Professional 3570.50.00
    Omega Speedmaster X-33 Gen 1 3290.50.00
    Seiko 6105-8119 (on vintage rubber)
    Seiko 6105-8119 (on Seiko super oyster)
    Seiko 6138-0017 UFO
    Seiko 6138-0030 Speedtimer
    Seiko 6138-0049 Brown Bullhead
    Seiko 6139-6040 (first WIS purchase)

    My Old Blog

    http://watchmenowandthen.blogspot.com/



  10. #10
    Member sempervivens's Avatar
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    Re: 1970s Seiko 6138-001X Chronograph Variations Review

    The 0010 is the Speedtimer version, available in Japan, while the 0011 and 0017 were produced for the international market. I think the differences between these two are strictly cosmetic; the 0011 has a red sweep hand, lighter orange checkerboarding on the sub dial, and no mention of water-resistance on the dial, whereas the 0017 has a yellow sweep, darker checkering and is marked 70m water-resistant
    Those marked 70m waterproof or 70m water-resistant are the oldest dials (ca. 1970-1972), this has nothing to do with the end number 0011 or 0012 etc (th end numbers are denominations for the geographical market which the watch was intended for).
    The oldest watches from the period 1970-72 originally also had a movement 6138A instead of 6138B.
    Watches intended for the Japanese market were marked Seiko 5 Sports Speedtimer instead of Seiko chronograph automatic.
    The original second hand for all of these yachtman watches was probably red. The yellow or white second hands are likely to be replacements. In catalog pictures it always is red, which is also more suited for the general design.
    The case originally had a nice circular brushed polish, but you often see yachtman's which have been highly polished, as you can also see in some of the pics posted here.

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