This is an 18 size, grade 931, model 2, 16 Jewel, Hamilton Davenport Iowa private label, 1 of 4,060 produced ,hunter case, lever set, pocket watch movement with signed dial only. Movement is bright and clean with the dial having a edge chip as shown. Movement is running, but not consistently for there is a slight wobbel at the balance wheel, and when held in different positions will temporararily stop running. Therefore, movement is being sold for restoration or parts only. Please feel free to ask questions. Thank you for looking.