Patent Document:

the wrist strap 4 ( see fig1 ) is attached to the main body of watch casing 1 at respective connection zones by means of spindles or strap securing pins 2 which engage into bores 3 . spindles 2 and bores 3 define strap connection means , and reside in connection zones 20 . between these points of attachment and the cylindrical space 5 for the mechanism , not shown , are disposed the two slot - shaped perfume chambers 6 which are integrally formed on the bottom and which are therefore open at the rear , being filled with an absorbent material in the form of felt strips 7 . the perfume chambers may be formed by a moulding or forming tool applied to the rear surface of the casing . the chambers 6 extend into the interior of casing 1 from an outer portion thereof , and are also very widely open laterally , i . e . towards the wrist strap connection points , in that in the aforesaid direction they are bounded only by a web 9 surrounding the lateral openings 8 , the web 9 serving for lateral retention of the clamped - in felt strip 7 . as can be seen in fig2 and 3 , each perfume chamber 6 extends longitudinally so that at least a major portion of its length is adjacent a connection zone 20 . fig1 also shows , in particular , that a circular portion 10 of the bottom , comprising the chambers 6 , is set back with respect to the rear surface , or central , generally flat portion 11 of the bottom , which forms the surface which rests against the arm . a watch glass is adapted to lie in a recess 22 defined in a front surface 24 of casing 1 , and bounded by opposed end walls 30 . as can best be seen in fig1 and 3 , central portion 11 extends beyond the surface of a surrounding portion 26 , which surrounding portion contains the rearward outer boundry 28 of the perfume chambers 6 . this chamber arrangement combines a maximum of advantages . the chambers 6 and their large evaporation orifices are completely concealed . the felt strips 7 can be exchanged in an extremely simple fashion . the stage - like construction of the casing bottom increases the bottom clearance which already exists in the wrist strap connecting points , so that the chamber orifices or openings 8 in the bottom can be fully utilized for evaporation . the position of the chambers 6 with respect to the wrist strap connection points also allows a discreet positioning of the lateral evaporation orifices or openings 8 . the chambers are integrally moulded in the mould stripping direction of the injection moulding process , i . e . without the use of any tools such as side pushers or the like and therefore entail no financial outlay of any kind . it goes without saying that the example of embodiment is only one ( though particularly advantageous ) manner of implementing the forms and dispositions of the perfume chamber which are possible according to the invention .

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