Very Rare antique 24h black dial Longines Masonic gild silver pocket watch c1900

  
Very Rare antique 24h black dial Longines Masonic gild silver pocket watch c1900. Very Rare antique 24h dial Longines Grands-Prix gold medals winner Masonic gild silver pocket watch c1900's EXCELLENT CONDITION. Amazing top grade lever escapement movement, fully jeweled, precision regulator, Breguet spiral. The watch is 50mm in diameter. Fine 24 hours(day/night indications) black enamel dial depicting Masonic symbols. Has 24 hour dial notation on the dial. That means that the movement has to be altered so that the hour hand doesn't go in 360 degrees around the dial in 12 hours, but rather in 24 hours. The hour hand, in my example, would only show 1900 hours. You'd know for sure that it was early evening. Conventional 12 hour watches have a "motion work" involving a 12 to 1 reduction in the gear train from the minute hand.

24 hour watches have a different gearing, with a 24 to 1 reduction. To be very technical, the motion work is the small 12-to-1 (or here a 24-to-1) reduction gear train that turns the timepiece's hour hand from the minute hand. It is attached to the going train by the friction coupling of the cannon pinion, so the minute and hour hands can be turned independently to set the timepiece. It is often located on the outside of the movement's front plate, just under the dial.

The watch comes with CERTIFICATE OF AUTHENTICITY. NOTE:PLEASE OBSERVE CAREFULLY THE PHOTOS! IT IS A SIGNIFICANT PART OF THE DESCRIPTION. Every potencial defect which is shown in the photos, but not mention in the description, will be considered for described. All the photos shoot by professional Nikon 105 Macro lens under 40x diopter magnification, so you can explore even the smallest detail like under microscope! Get Images that Make Supersized Seem Small. Auctiva's Listing Templates improve your auctions in minutes. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva. The item "Very Rare antique 24h black dial Longines Masonic gild silver pocket watch c1900" is in sale since Thursday, April 06, 2017. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Pocket Watches\Antique".

The seller is "riaerica2000" and is located in Sofia. This item can be shipped worldwide.