Watch dial with balls

Inventor: Damien Goyet (Winkel, FR)

Assignee: The Swatch Group Research and Development Ltd

G04B39/002 G04B19/04

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Quick Facts

Patent No.: US 12681439
App. No.: 17/770,425
Granted: Jul 14, 2026
Kind: B2

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Abstract

Provided is a watch glass configured to be disposed on a watch dial with indications. This watch dial comprises at least one indication, a first chamber configured to let a first mobile element circulate, a second chamber configured to comprise a second mobile element and a separation wall separating the chambers and large enough to obtain from the indications of the dial an enlarged image.

Claims (10)

1 . A watch glass ( 100 ) configured to be disposed on a watch dial ( 200 ) of a watch; said watch dial ( 200 ) comprising at least one indication ( 201 ); said watch glass ( 100 ) comprising at least one first chamber ( 110 ) configured to comprise a first mobile element ( 210 ); said at least one first chamber ( 110 ) comprising at least one upper wall ( 101 ) configured to be distant, and at least a portion of at least one lateral wall ( 102 ) being thicker than said at least one upper wall ( 101 );

wherein

said at least one upper wall ( 101 ) and said at least one lateral wall ( 102 ) are configured to form said at least one first chamber ( 110 ), and in that said watch glass comprises at least one second chamber ( 120 ) configured to comprise a second mobile element ( 220 ) and at least one peripheral wall ( 103 ) being configured to form said at least one second chamber ( 120 ), and

a movement of said second mobile element is more restricted than the movement of said first mobile element.

2 . The watch glass ( 100 ) according to claim 1 , wherein said at least one second chamber ( 120 ) surrounds said at least one lateral wall ( 102 ) and/or said at least one first chamber ( 110 ).

3 . The watch glass ( 100 ) according to claim 1 , wherein said at least one peripheral wall ( 103 ) surrounds said at least one lateral wall ( 102 ) and/or said at least one second chamber ( 120 ).

4 . The watch glass ( 100 ) according to claim 1 , wherein said at least one lateral wall ( 102 ) is configured to obtain from said at least one indication ( 201 ) an enlarged image.

5 . A watch dial ( 200 ) comprising a watch glass ( 100 ) configured to be disposed on a watch; said watch dial ( 200 ) comprising at least one indication ( 201 ); said watch glass ( 100 ) comprising at least one first chamber ( 110 ) configured to comprise a first mobile element ( 210 ); said at least one first chamber ( 110 ) comprising at least one upper wall ( 101 ) configured to be distant, and at least a portion of at least one lateral wall ( 102 ) being thicker than said at least one upper wall ( 101 ), wherein said at least one upper wall ( 101 ) and said at least one lateral wall ( 102 ) are configured to form said at least one first chamber ( 110 ), and in that said watch glass comprises at least one second chamber ( 120 ) configured to comprise a second mobile element ( 220 ) and at least one peripheral wall ( 103 ) being configured to form said at least one second chamber ( 120 ), wherein at least one first mobile element ( 210 ) is configured to move freely in said at least one first chamber ( 110 ) and at least one second mobile element ( 220 ) is configured to move freely in said at least one second chamber ( 120 ), and wherein a movement of said at least one second mobile element is more restricted than the movement of said at least one first mobile element.

6 . The watch dial ( 200 ) according to claim 5 , wherein said at least one first mobile element ( 210 ) and/or said at least one second mobile element ( 220 ) is or are made from ferromagnetic material.

7 . A watch ( 300 ) comprising: a watch dial ( 200 ) and a watch glass ( 100 ) configured to be disposed on said watch dial ( 200 ); said watch dial ( 200 ) comprising at least one indication ( 201 ); said watch glass ( 100 ) comprising at least one first chamber ( 110 ) configured to comprise a first mobile element ( 210 ); said at least one first chamber ( 110 ) comprising at least one upper wall ( 101 ) configured to be distant, and at least a portion of at least one lateral wall ( 102 ) being thicker than said at least one upper wall ( 101 ), wherein said at least one upper wall ( 101 ) and said at least one lateral wall ( 102 ) are configured to form said at least one first chamber ( 110 ), and in that said watch glass comprises at least one second chamber ( 120 ) configured to comprise a second mobile element ( 220 ) and at least one peripheral wall ( 103 ) being configured to form said at least one second chamber ( 120 ), at least one first mobile element ( 210 ) configured to move freely in said at least one first chamber ( 110 ) and at least one second mobile element ( 220 ) configured to move freely in said at least one second chamber ( 120 ), wherein at least one first magnetised hand ( 310 ) located under the watch dial ( 200 ) and configured to move said at least one first mobile element ( 210 ) through said watch dial ( 200 ) and at least one second magnetised hand ( 320 ) located under the watch dial ( 200 ) and configured to move said at least one second mobile element ( 220 ) through said watch dial ( 200 ), and wherein a movement of said at least one second mobile element is more restricted than the movement of said at least one first mobile element.