10k GOLD filled....7j....screw back case....BEAUTIFUL! MOVEMENT SIGNED: Waltham, A.W.W. Co., 10997710, and Waltham Mass. For additional markings see pictures. CASE SIGNED: Wadsworth, Pilot, Guaranteed 20 yrs, 955805, it also has a ships wheel graphic. From what I have found online: 10K GOLD filled case, model 1899, made in 1901, 16s, and 7j. CASE CONDITION: The glass has no cracks or scratches. Light signs of age only on the case...one very small ding. Could use a polishing. The loop on the top rotates perfectly. Some light surface wear. MOVEMENT CONDITION: It does wind and is running as seen in video. The time can be adjusted. All hands are still on the watch. The face has a small impact area that is hard to see unless you use a jewlers loup. May or may not need maintenance as it is an antique. It hasnt been tested for accuracy or an extended time. Please keep this in mind before purchase. I WILL BE LISTING SEVERAL POCKET WATCHES, SOME GOLD AND SOME SILVER, FROM THIS SAME ESTATE SALE COLLECTION. PLEASE SEE MY OTHER LISTINGS. It will be protected well and insured. Location E1, MER, FBMP