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Measuring Pocket Watch Size

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Written by GoldSmithWatchWorks Saturday, 24 April 2010 10:00

Pocket Watch Size Information

Below is a table to convert an American pocket watch size to inches and millimeters.  This measurement refers to the   movement measured at the dial plate,..

Size (Lancashire) Inches Millimeters
20s 1 5/6 46.56
18s Common 1 23/30 44.86
17s 1 22/30 44.02
16s Common 1 21/30 43.18
14s Common 1 19/30 41.48
12s Common 1 17/30 39.78
10s Common 1 15/30 38.10
8s Common 1 13/30 36.40
6s Common 1 11/30 34.70
0s Common 1 5/30 29.62
3/0s Common 1 3/30 27.94