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Watch Key Size Chart
| |
U.S. / English |
Euro |
| Key Number |
Metric (mm) |
Inches (.000) |
Metric (mm) |
| 00 |
0.95 |
0.037 |
2 |
| 0 |
1 |
0.039 |
1.9 |
| 1 |
1.05 |
0.041 |
1.8 |
| 2 |
1.15 |
0.045 |
1.75 |
| 3 |
1.2 |
0.047 |
1.65 |
| 4 |
1.3 |
0.051 |
1.6 |
| 5 |
1.4 |
0.055 |
1.5 |
| 6 |
1.5 |
0.059 |
1.4 |
| 7 |
1.6 |
0.063 |
1.3 |
| 8 |
1.65 |
0.065 |
1.2 |
| 9 |
1.75 |
0.069 |
1.15 |
| 10 |
1.8 |
0.071 |
1.05 |
| 11 |
1.9 |
0.075 |
1 |
| 12 |
2 |
0.079 |
0.95 |
|
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