美国和瑞士表的机芯尺寸对照

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AMERICAN MOVEMENT SIZES (LANCASHIRE GAUGE)

SIZE	INCHIES	MM	LIGNES
18/0	.600	15.24	6 3/4
17/0	.633	16.08	7 1/8
16/0	.666	16.92	7 1/2
15/0	.700	17.78	7 7/8
14/0	.733	18.62	8 1/4
13/0	.766	19.46	8 5/8
12/0	.800	20.32	9 3/4
11/0	.833	21.16	9 3/8
10/0	.866	22.0	9 3/4
9/0	.900	22.86	10 1/8
8/0	.933	23.70	10 1/2
7/0	.966	24.54	10 7/8
6/0	1.0	25.4	11 1/4
5/0	1.033	26.24	11 5/8
4/0	1.066	27.08	12 1/8
3/0	1.1	27.94	12 3/8
2/0	1.133	28.78	12 3/4
0	1.166	29.62	13 1/8
1	1.2	30.48	13 1/2

SIZE	INCHIES	MM	LIGNES
2	1.233	31.32	13 7/8
3	1.266	32.16	14 1/4
4	1.3	33.02	14 7/8
5	1.333	33.86	15 1/8
6	1.366	34.70	15 3/8
7	1.4	35.56	15 3/4
8	1.433	36.40	16 1/8
9	1.466	37.24	16 1/2
10	1.5	38.1	16 7/8
11	1.533	38.94	17 1/4
12	1.566	39.78	17 5/8
13	1.6	40.64	18 1/8
14	1.633	41.48	18 3/8
15	1.666	42.32	18 3/4
16	1.7	43.18	19 1/8
17	1.733	44.02	19 1/2
18	1.766	44.86	19 7/8
19	1.8	45.72	20 1/4
20	1.833	46.56	20 3/4

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SWISS MOVEMENT SIZES (LIGNES)

LIGNES	INCHIES	MM
7	.622	15.79
8	.710	18.05
9	.799	20.30
10	.888	22.56
11	.977	24.81
12	1.066	27.07
13	1.154	29.32
14	1.243	31.58
15	1.332	33.84
16	1.421	36.09
17	1.510	38.35
18	1.599	40.60
19	1.687	42.86
20	1.776	45.11
21	1.865	47.37
22	1.954	49.63