Screw-down Crown vs. Push/pull Crown

Thread: Screw-down Crown vs. Push/pull Crown

Results 1 to 4 of 4
  1. #1

    Join Date
    Jan 2009
    Posts
    32

    Screw-down Crown vs. Push/pull Crown

    Does a screw-down crown provide any advantages regarding water resistance over the more typical push/pull type crown??

    Thanks.

  2. #2
    Member niles316's Avatar
    Join Date
    Jul 2008
    Location
    Teban Gardens
    Posts
    1,335

    Re: Screw-down Crown vs. Push/pull Crown

    Diver watches usually have screw down crown so if it's not a diver but it comes with screw down crown,then i think it's more resistant than normal push/pull. Plus watches with screw down crown always comes with the caveat that u must ensure it is screwed down n not just pushed in b4 submerging into water. So screwing it down definitely plays a part in resisting water.

  3. #3
    Inactive Isthmus's Avatar
    Join Date
    Feb 2006
    Location
    NY, NY
    Posts
    11,612

    Re: Screw-down Crown vs. Push/pull Crown

    The primary function of screw down crowns is not water resistance, but rather crown and stem protection. The screwdown mechanism is designed to act as a guard against impacts or something getting caught on your crown that might pull or damage it while you are underwater. This make since when you consider that a damaged crown and stem can compromise the watch's water resistance and a flooded dive timer could prove dangerous or ultimately fatal to a diver. There are lots of different crown locking mechanisms used on divers, not just screw down crowns. there are flip locks, twist locks, acrewable caps, simple crown guards and various others. Some screw down designs do incorporate additional seals in the crown that cap the top of the tube. however these provide additional sealing and are not the primary water resistance mechanism. The primary seals by which depth rating (and overpressure) are tested ar the seals inside the crown tube.

    BTW, there are lots of professional divers (especially vintage models) that do not use lockable crowns of any sort.

  4. Remove Advertisements
    WatchUSeek.com
    Advertisements
     

  5. #4
    Member niles316's Avatar
    Join Date
    Jul 2008
    Location
    Teban Gardens
    Posts
    1,335

    Re: Screw-down Crown vs. Push/pull Crown

    Isthmus is probably right. I just realised i have a watch with a screwdown crown but its WR is only 30m..can't even wear it to swim..

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •