Pocket Watch Crystal Chart
Please
do not call us for antique pocket watch information and/or values.
At this time, we do not offer appraisals.
We are not staffed to answer calls for antique
pocket watch information and appraisals.
Please see our watch information section,
or visit the NAWCC
Message Board if you need further assistance.
THANK YOU FOR YOUR UNDERSTANDING!
The chart below shows the relative
size of a crystal labeled in Lignes to its size is millimeters.
For example, a crystal labeled 19 4/16 is 43.4 mm.
Another example, if you have a bezel that measures about 36.2 mm,
the crystal size would be about 16 1/16 Lignes.
Watchmakers and hobbyists - Click here
for the free downloadable
version (must have Adobe Acrobat or equivalent to view the .pdf
file).
Please Note: If you are thinking
of buying a replacement crystal for your pocket watch, in order
to fit the perfect size for your pocket watch bezel, most watchmakers
require that you send the watch in for proper sizing. This is
also our policy.
Ligne
Size |
0/16 |
1/16 |
2/16 |
3/16 |
4/16 |
5/16 |
6/16 |
7/16 |
8/16 |
9/16 |
10/16 |
11/16 |
12/16 |
13/16 |
14/16 |
15/16 |
| 6 |
13.5 |
13.7 |
13.8 |
14.0 |
14.1 |
14.2 |
14.4 |
14.5 |
14.7 |
14.8 |
14.9 |
15.1 |
15.2 |
15.4 |
15.5 |
15.6 |
| 7 |
15.8 |
15.9 |
16.1 |
16.2 |
16.4 |
16.5 |
16.6 |
16.8 |
16.9 |
17.1 |
17.2 |
17.4 |
17.5 |
17.6 |
17.8 |
17.9 |
| 8 |
18.0 |
18.2 |
18.3 |
18.5 |
18.6 |
18.8 |
18.9 |
19.1 |
19.2 |
19.3 |
19.5 |
19.6 |
19.7 |
19.9 |
20.0 |
20.2 |
| 9 |
20.3 |
20.4 |
20.6 |
20.7 |
20.9 |
21.0 |
21.1 |
21.3 |
21.4 |
21.6 |
21.7 |
21.9 |
22.0 |
22.1 |
22.3 |
22.4 |
| 10 |
22.6 |
22.7 |
22.8 |
23.0 |
23.1 |
23.3 |
23.4 |
23.5 |
23.7 |
23.8 |
24.0 |
24.1 |
24.3 |
24.4 |
24.5 |
24.7 |
| 11 |
24.8 |
25.0 |
25.1 |
25.2 |
25.4 |
25.5 |
25.7 |
25.8 |
25.9 |
26.1 |
26.2 |
26.4 |
26.5 |
26.6 |
26.8 |
26.9 |
| 12 |
27.1 |
27.2 |
27.4 |
27.5 |
27.6 |
27.8 |
27.9 |
28.1 |
28.2 |
28.3 |
28.5 |
28.6 |
28.8 |
28.9 |
29.0 |
29.2 |
| 13 |
29.3 |
29.5 |
29.6 |
29.7 |
29.9 |
30.0 |
30.2 |
30.3 |
30.5 |
30.6 |
30.7 |
30.9 |
31.0 |
31.2 |
31.3 |
31.4 |
| 14 |
31.6 |
31.7 |
31.9 |
32.0 |
32.1 |
32.3 |
32.4 |
32.6 |
32.7 |
32.9 |
33.0 |
33.1 |
33.3 |
33.4 |
33.6 |
33.7 |
| 15 |
33.8 |
34.0 |
34.1 |
34.3 |
34.4 |
34.5 |
34.7 |
34.8 |
35.0 |
35.1 |
35.2 |
35.4 |
35.5 |
35.7 |
35.8 |
36.0 |
| 16 |
36.1 |
36.2 |
36.4 |
36.5 |
36.7 |
36.8 |
36.9 |
37.1 |
37.2 |
37.4 |
37.5 |
37.6 |
37.8 |
37.9 |
38.1 |
38.2 |
| 17 |
38.3 |
38.5 |
38.6 |
38.8 |
38.9 |
39.1 |
39.2 |
39.3 |
39.5 |
39.6 |
39.8 |
39.9 |
40.0 |
40.2 |
40.3 |
40.5 |
| 18 |
40.6 |
40.7 |
40.9 |
41.0 |
41.2 |
41.3 |
41.5 |
41.6 |
41.7 |
41.9 |
42.0 |
42.2 |
42.3 |
42.4 |
42.6 |
42.7 |
| 19 |
42.9 |
43.0 |
43.1 |
43.3 |
43.4 |
43.6 |
43.7 |
48.4 |
44.0 |
44.1 |
44.3 |
44.4 |
44.6 |
44.7 |
44.8 |
45.0 |
| 20 |
45.1 |
45.3 |
45.4 |
45.5 |
45.7 |
45.8 |
46.0 |
46.1 |
46.2 |
46.4 |
46.5 |
46.7 |
46.8 |
46.9 |
47.1 |
47.2 |
| 21 |
47.4 |
47.5 |
47.7 |
47.8 |
47.9 |
48.1 |
48.2 |
48.4 |
48.5 |
48.6 |
48.8 |
48.9 |
49.1 |
49.2 |
49.3 |
49.5 |
| 22 |
49.6 |
49.8 |
49.9 |
50.1 |
50.2 |
50.3 |
50.5 |
50.6 |
50.8 |
50.9 |
51.0 |
51.2 |
51.3 |
51.5 |
51.6 |
51.7 |
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