Brand: Longines Model: antique alaturka alafranga (GMT) Period:1900-1949 Movement: manual wind Case material: steel Type: gmt wrist watch Condition: worn in very very good condition Case diameter: 47-59 mm (including crown) Original dial yes seramic Crown is original It works well -yes Full original -yes Shipping-we send via ups and fedex Case and machine numbers are consistent, dial is flawless. Longines alaturka–alafranga (Turkish / Ottoman dual time) Spot Description: Rare Longines dual-time watch made exclusively for the Ottoman market. Displays both Alaturka (sunset-adjusted Turkish time) and Alafranga (European fixed time) simultaneously. Features a special mechanism allowing daily Alaturka time adjustment without stopping the movement. An advanced historical complication and a very rare museum-grade collector’s piece. Original and in working condition. Please review all photos in detail and read all descriptions one by one. I don’t want to be disappointed when my clients come across an undesirable result. Super fast shipping to the whole world(3-5 days). Please note: Before purchasing a product, check the customs regulations in your country and consider import duties. However, I am not responsible for any additional customs fees that are likely to occur. If you want to return the product, you should pay the shipping fees. If you have a problem, write me. I will help you as soon as possible. Will be shipped registered, well-packaged, and with a tracking code.