Beschreibung:

Rolex. An 18K gold automatic calendar bracelet watch with diamond set Aventurine dial Model: Day-Date Reference: 18038 Date: Circa 1978 Movement: 27-jewel Cal.3055 automatic, adjusted to 5 positions and temperature, No.005**** Dial: Dark blue Aventurine hard stone, diamond set hour markers, gilt outer minute divisions, day aperture at 12, magnified date aperture at 3, gilt baton hands, centre seconds Case: Brushed and polished tonneau form, screw down back and crown, fluted bezel, No.554**** Strap/Bracelet: Polished President link Buckle/Clasp: Signed folding clasp Signed: Case, dial & movement Size: 36mm Accompaniments: Rolex box, International Service Guarantee dated 12/5/16, Day-Date brochure Fußnoten Rolex has produced an interesting range of hard stone dials throughout the decades - malachite, tiger's eye, onyx and lapis lazuli spring to mind immediately. But even though the looks of these different stones can give a completely different feel to the design of a watch, there is one thing they all have in common. Hard stone dials are always a challenge produce but do not change over time. Carved from a large stone which needs to be of excellent quality, the slice needs to be cut exceedingly thin in order to produce a usable dial. Especially with types of stone that are on the more porous side in structure, this can be a challenge and many are rejected. The complicated production process is clearly worth the effort. The nature of the material means each dial is truly unique and characterful.