This clasp is often called a hidden clasp because when the watch band is closed the only portions of the clasp that show are the buttons. Because of this invisible clasp, the butterfly clasp is a very popular watch band clasp. Butterfly clasps are great for metal watch bands. The clasp is attached to the band by a tube with pins on each side of the band. The push buttons add an extra level of security to this watch band because the clasp cannot open until the buttons have been pushed in. To determine the size clasp that you need, you measure the tube length. Each clasp is sold separately allowing you to decide the size of the replacement clasp you need. Simply select the tube size you need from the drop down menu above.
- Available in stainless steel
- Limited sizes available in gold plated, Rose Gold and Black
- Sold individually
- Order by tube size
- Available tube sizes: 4.5, 5.0, 6.0, 7.0, and 8.0mm
- Limited availability with rounded buttons
- These replacement clasps are for metal bands
- Known as hidden clasps because only the push buttons can be seen when it is completely closed
- The top two butterfly wing sections fold down onto the bottom portion and meet in the middle
- The top portions are half the length of the bottom portion
- The push buttons are used to release the inner catch and open the clasp
- As stock changes frequently, styles are subject to vary depending on availability.
Click Here to Learn How to Measure a Butterfly Watch Clasp
*Sizes are approximate as measurements may vary slightly by gauge.
*Styles and colors may vary.
| Part Number |
Color |
Tube Width |
Tube Hole Diameter |
Button Width |
Clasp Width at Buttons |
Clasp End Width |
O/A Closed Length |
O/A Open Length |
Notes |
| 80.319.17.9 |
Silver |
4.0mm |
1.2mm |
17.7mm |
8.1mm |
8.2mm |
37.1mm |
70.3mm |
|
| 80.319.20.9 |
Silver |
4.0mm |
1.1mm |
20.0mm |
8.2mm |
8.5mm |
37.0mm |
68.6mm |
|
| 80.3205.18.9 |
Silver |
4.5mm |
.90mm |
18.3mm |
11.0mm |
7.8mm |
37.0mm |
70.6mm |
|
| 80.3205.20.9 |
Silver |
4.5mm |
1.1mm |
20.0mm |
8.2mm |
7.9mm |
36.4mm |
68.5mm |
|
| 80.320.22.9 |
Silver |
5.0mm |
.90mm |
22.0mm |
10.9mm |
10.9mm |
39.1mm |
74.0mm |
|
| 80.3204.20.9 |
Silver |
5.0mm |
1.1mm |
21.4mm |
14.3mm |
11.0mm |
39.0mm |
75.5mm |
|
| 80.3204.22.9 |
Silver |
5.0mm |
1.1mm |
22.5mm |
11.0mm |
11.0mm |
38.8mm |
74.3mm |
|
| 80.3205.17.9 |
Silver |
4.5mm |
.95mm |
17.5mm |
9.4mm |
8.7mm |
34.8mm |
65.8mm |
|
| 80.3205.19.9 |
Silver |
4.5mm |
1.0mm |
19.0mm |
9.4mm |
8.7mm |
35.1mm |
64.1mm |
|
| 80.3206.19.9R |
Silver |
6.0mm |
1.2mm |
19.0mm |
13.8mm |
10.6mm |
40.7mm |
78.5mm |
Rounded Buttons |
| 80.3206.21.9R |
Silver |
6.0mm |
.90mm |
21.0mm |
14.4mm |
10.7mm |
40.0mm |
76.7mm |
Rounded Buttons |
| 80.3206.22.9 |
Silver |
6.0mm |
1.0mm |
22.0mm |
14.0mm |
11.7mm |
39.8mm |
76.5mm |
|
| 80.3206.23.3 |
Black |
6.0mm |
.95mm |
23.3mm |
|
11.8mm |
39.2mm |
74.8mm |
|
| 80.3206.23.4 |
Rose Gold |
6.0mm |
.95mm |
23.3mm |
|
11.8mm |
39.0mm |
74.6mm |
|
| 80.3206.23.9R |
Silver |
6.0mm |
1.1mm |
23.0mm |
13.8mm |
10.9mm |
40.7mm |
78.2mm |
Rounded Buttons |
| 80.3206.23.9S |
Silver |
6.0mm |
1.0mm |
23.1mm |
14.1mm |
10.9mm |
40.0mm |
76.5mm |
Square Buttons |
| 80.3206.24.9R |
Silver |
6.0mm |
1.1mm |
24.3mm |
15.9mm |
10.1mm |
37.7mm |
70.3mm |
Rounded Buttons |
| 80.3206.25.9 |
Silver |
6.0mm |
1.0mm |
24.8mm |
14.1mm |
10.2mm |
41.3mm |
76.3mm |
|
| 80.3206.25.9S |
Silver |
6.0mm |
.95mm |
25.0mm |
24.8mm |
11.5mm |
39.7mm |
76.6mm |
Square Buttons |
| 80.3206.27.9 |
Silver |
6.0mm |
.90mm |
27.0mm |
10.5mm |
10.0mm |
40.0mm |
76.1mm |
|
| 80.3207.23.9 |
Silver |
7.0mm |
.90mm |
23.2mm |
13.9mm |
11.0mm |
39.1mm |
75.2mm |
|
| 80.3207.25.9 |
Silver |
7.0mm |
.90mm |
25.2mm |
11.3mm |
11.3mm |
39.3mm |
74.7mm |
|
| 80.3217.24.9 |
Silver |
7.0mm |
1.0mm |
24.8mm |
13.9mm |
11.4mm |
40.1mm |
75.6mm |
|
| 80.3208.24.9 |
Silver |
8.0mm |
.90mm |
25.1mm |
12.2mm |
12.0mm |
39.2mm |
74.1mm |
|
| |
|
|
|
|
|
|
|
|
|
| 80.3204.16.8 |
Gold |
5.0mm |
1.1mm |
16.5mm |
10.1mm |
8.4mm |
37.0mm |
69.5mm |
|
| 80.3205.16.8 |
Gold |
4.5mm |
1.1mm |
16.5mm |
10.0mm |
9.5mm |
37.0mm |
69.9mm |
|
| 80.3206.23.8 |
Gold |
6.0mm |
1.1mm |
23.0mm |
13.9mm |
11.0mm |
41.6mm |
78.5mm |
|
| 80.3206.23.8S |
Gold |
6.0mm |
1.0mm |
23.0mm |
11.0mm |
11.7mm |
39.3mm |
75.9mm |
Square Buttons |
| 80.3208.24.8 |
Gold |
8.0mm |
1.1mm |
24.8mm |
12.0mm |
11.9mm |
39.2mm |
74.5mm |
|
| 80.3214.13.8 |
Gold |
5.0mm |
1.1mm |
13.5mm |
10.1mm |
8.5mm |
37.1mm |
69.6mm |
|
