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Case Back Opener Wrench

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    Case Back Opener Wrench
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    Replace watch batteries and do simple repairs with ease with this handy watch case opener. Included with the opener are 12 patterned pins and grips and four interchangeable chucks. It conveniently opens the back of most waterproof watch cases.


    ITEM#: 13992881

    This quality Wrench Screw Back Watch Opener will open and close most screw waterproof watch case backs. This wrench includes 12 patterned pins and grips and 4 sets of interchangeable chucks.

    • Adjustable wheel thumb
    • Knurled handle for secure grip
    • Steel body with 3 adjustable Jaws
    • Includes 18 pins/bits for a variety of case backs
    • Perfect for watch repair, replacing batteries and changing movements
    • Includes four 4 sets of interchangeable chucks: Square, Round, Flat & Knurled
    • Knurled handle prevents loosing your grip
    • The maximum jaw opening is 33mm


    Dimensions 6x2x1
    Manufacturer Warranty 1 year Limited Manufacturer
    Materials Metal
    Model Number WTK-027

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • case back winch

      This is a tool a wish a I had years ago ,being an amateur watch repairer.

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    • Lousy wrench stay away

      Uusally i dont write reviews. But this wrench i bought really boiled my blood. Its of really cheap materail. The handle came off before i use it. And the size of the watch i can effectively use is 35mm not what is stated. So stay away unless you really want to know for sure what i said is true!

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    • Case Back Wrench Opener

      It was easy to understand and use. It did exactly what I wanted it to do. I have used it 5 times since it arrived and worked well on each watch. This has already paid for itself in not having to drive to a jeweler and having the batteries changed.

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    • Watch case opener

      Saves me money, instead of taking my watches to have the batteries changed at watch repair shop, which is very expensive, i now do it myself. Good tool to have.

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    • Fifty-fifty

      I had two watches, same brand, same problem - needing new batteries. After an hour of working on one, I got the back off and the battery replaced. however the other watch I could never get the back off of. This is definitely not what a jeweler uses as they can flip off the back of a watch with ease.

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    • case opener

      This product does not come with any instructions so before you scratch up the back of your watch it would be nice to know how to attach and use the product. First time I have been unhappy with Overstock.

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    • Perfect for changing your own batteries

      I have used this on several of my high end watches, (Bolivia Ect.) no scratching due to the wide selection of tooling allowing you to always get a tight fit on the watch back.

      Read More

    Questions & Answers

    Get your product questions answered right here.
    • can this open the back of a rolex

      • Hello tom, I'm sorry we do not offer compatibility information on this item. Have a great day!

    • can you take the back a tudor watch

      • Hello tom, I'm sorry we do not offer compatibility information on this item. Have a great day!

    • Description states it is for most screw watch backs. All of the watches I've seen and opened were pried off (snapped off). Does this tool work on snap off watch backs. Thank you.

      • Unfortunately, this tiem would not work with watches that have snapped together cases as does not have the required thin edge needed to remove the back casing.

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    Usually leaves our warehouse in 1-2 business days. *

    Standard Return Policy for Jewelry:

    Items must be returned in new or unused condition and contain all original materials included with the shipment.
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    Shipping Information:

    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.