External watch case with lens made of artificial crystal glass and manufacturing method for the same

External watch case with lens made of artificial crystal glass for forming a case for a timepiece portion (4,5,7) including at least a time display device (4), a movement (7), an adjusting device (5). Such external case includes an outer case portion (2) and an outer lens portion (1) integrated toge...

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Bibliographische Detailangaben
Hauptverfasser:	NG, HOI KEUNG, NG, HOI SAN LOBY
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	HOROLOGY MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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Beschreibung
Zusammenfassung:	External watch case with lens made of artificial crystal glass for forming a case for a timepiece portion (4,5,7) including at least a time display device (4), a movement (7), an adjusting device (5). Such external case includes an outer case portion (2) and an outer lens portion (1) integrated together, the outer lens portion (1) being disposed on the outer case portion (2) and the timepiece portion (4,5,7) being accommodated in the outer case portion (2). Methods for making the external watch case are also disclosed.