34 Clock Keys Four 5 Pronged Winding Repair Tools 14 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. Two 5 Sided Clock Keys. This is a new set of two 5 sided clock keys. The sizes are: Size 2, 2.75 mm. Size 3, 3.00 mm. Size 4, 3.25 mm. Size 5, 3.50 mm. Size 6, 3.75 mm. Size 7, 4.00 mm. Size 8, 4.25 mm. Size 9, 4.50 mm. Size 10, 4.75 mm. Size 11, 5.00 mm 2 New 5 In 1 Pocket Watch Winding Keys. This is a new set of 2 five sided pocket watch keys. These can be used with a variety of pocket watches. The sizes are: Size 2, 1.75 mm. Size 3, 1.65 mm. Size 4, 1.60 mm. Size 5, 1.50 mm. Size 6, 1.40 mm. Size 7, 1.30 mm. Size 8, 1.20 mm. Size 9, 1.15 mm. Size 10, 1.05 mm. Size 11, 1.00 mm.