70 Clock Pocket Watch Crank Keys 36 Clock Keys. This is a new set of 36 clock keys. You receive: Three size 3 (3.00 mm) clock keys. Three size 4 (3.25 mm) clock keys. Three size 5 (3.50 mm) clock keys. Three size 6 (3.75 mm) clock keys. Three size 7 (4.00 mm) clock keys. Three size 8 (4.25 mm) clock keys. Three 1.60 mm clock keys. Three 1.65 mm clock keys. Three 1.70 mm clock keys. Three 1.85 mm clock keys. Three 1.90 mm clock keys 20 New Clock Crank Keys. This is a new set of 20 clock crank keys. You receive: 1 Key size 0, 2.25 mm 1 Key size 1, 2.50 mm 1 Key size 2, 2.75 mm 1 Key size 3, 3.00 mm 1 Key size 4, 3.25 mm 1 Key size 5, 3.50 mm 1 Key size 6, 3.75 mm 1 Key size 7, 4.00 mm 1 Key size 8, 4.25 mm 1 Key size 9, 4.50 mm 2 Key sizes 10, 4.75 mm 2 Key sizes 11, 5.00 mm 2 Key sizes 12, 5.25 mm 1 Key size 13, 5.50 mm 1 Key size 14, 5.75 mm 1 Key size 15, 6.00 mm 1 Key size 16, 6.25 mm 14 New Watch Winding Keys. This is a new set of 14 watch keys. These keys are used for winding watches. You receive: One 00 size watch winding key. One 0 size watch winding key. One 1 size watch winding key. One 2 size watch winding key. One 3 size watch winding key. One 4 size watch winding key. One 5 size watch winding key. One 6 size watch winding key. One 7 size watch winding key. One 8 size watch winding key. One 9 size watch winding key. One 10 size watch winding key. One 11 size watch winding key. One 12 size watch winding key. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.