Watch case with a composite middle part

Details Watch case with a composite middle part Watch case with a composite middle part

2011-08-02

2011-08-02

Kayes, Sean (Department: 2833)

Horology: time measuring systems or devices

Cases

With details of center

C368S280000, C368S310000

Reexamination Certificate

active

07988350

ABSTRACT:
The middle part includes an inner metallic middle part (10) and an outer middle part (20) made of a natural or synthetic mineral material, such as ceramics. The inner middle part (10) is itself made up of a top ring (12) and a bottom ring (14), each ring including a radial, peripheral extension (13, 15), whose opposite shoulders can mechanically lock the outer middle part (20), for example by screwing the two rings (12, 14) one inside the other.

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