Read more Read more Read more Luminous skeleton37X35mm Big Dial Movement Hollow Design Men Mechanical Skeleton Wrist Watches Super-LumiNova Luminous Material,Can Be Recycled Using,Never Fear Of The Night From Now On. Full Transparent Caseback,Round &Square orderly Cal.A3155 AGELOCER Self-produced Mechanical Movt Frequency 3HZ (21600 v.p.h), Equipped With 27 Jewels.Double way winding system, Incabloc triangle shock absorber Big Transparent Caseback,the ring width is 3mm only.Exquisite interior movement,a panoramic caseback. 31 6L Stainless Steel Watch Case In the 193 process planning.design,precision machining and production process,It gradually rejuvenated,experienced 32 hours of processing carved,eventually condensed into 34 grams slim case on your wrist,Thickness only 10mm. Italian Cowhide Leather Strap/Elegant Folding Clasp Buckle Italian Embossed Calfskin,Combined With German Stiching Technology,Handmade Oil Edge, It's soft,comfortable and durable. AGELOCER Brand Exclusive Single Folding Buckle,Made of 31 6L stainless steel, it is exquisite and elegant. POSITIVE BACK DETAIL BAND (function(f) {var _np=(window.P._namespace("AplusModule"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { // register javascript with unique module id P.when("jQuery", "AplusModules-module-6", "ready").execute(function($, hoverModule) { hoverModule("aplus-module-6-3"); }); })); How to maintain this mechanical watch? When using for the first time, please manually wind up the watch to get enough energy to keep it working well, energy dial shouldn’t exceed 35. If you wear the watch less than 8 hours a day, please manually wind up your watch to keep working well. Please avoid wearing it in hot water or under thermal steam environment, such as hot bathing, hot springs, sauna, etc. Battery free, as you wear it, it will automatically continue to wind up. If you wear it more than 10 hours a day, you won’t never to manually wind up your watch. Read more