Introduction
Released to celebrate Rolex's 40th anniversary in 1945, the Rolex Datejust has become one of the Genevan Giant's most iconic watches. The world's first wristwatch to display the date via an aperture on the dial, the Datejust revolutionized wristwatch design for decades to follow. With its emblematic Cyclops lens, jubilee bracelet (designed specifically for the model in 1945), and classy fluted precious metal bezel, the Datejust's aesthetic has always been that of pure elegance and class. Perhaps one of Rolex's most recognizable designs, the Datejust has evolved from its dressier roots into a perfectly capable timepiece rivaling the robustness of most brand's sports watches. However, before the “Datejust” name became as ubiquitous with Rolex as it is now, the ref. 6105 was launched in the mid-1940s as an extension of the Oyster Perpetual collection, but with the addition of a date function at 3 o’clock, like a precursor to the Datejust. A large watch for its time, the ref. 6105 sports a 36mm diameter case, but thanks to its bubbleback, the ref. 6105 earned the nickname “Ovettone” meaning “big egg” in Italian. This enlarged case made room for the ref. 6105’s newly introduced date wheel module on the movement and thereby allowed it to precede one of watchmaking’s most iconic models.
Loupe This Scorecard
Grade
V 8
Status
Vetted & Approved
Included
Watch Only
Est. value range
$3,000 – $5,000
The Details
Brand
Rolex
Dimensions
36mm
Model
Datejust
Movement
Automatic cal. A296/775
Reference
6105
Bracelet
Leather strap
Year
1953
Condition
Very good
Material
Stainless steel and 18kt yellow gold
Included
Watch only
Dial Color
Black

THE DIAL
Featuring a beautiful black dial with gold dauphine hands and gold dagger-shaped applied hour markers, this ref. 6105's gilt inscriptions pair perfectly with the aesthetic of the rest of its dial and its two-tone construction.

THE CONSTRUCTION
Meaning "big egg" in Italian, the "Ovettone" nickname refers to a small number of early Datejust references that feature a large 36mm case alongside a protruded ‘bubble back’ which was included to provide space for the newly introduced date wheel module on the movement.

TIMING MACHINE READOUT
This reading was taken (crown down) with a ONEOF Accuracy Boutique Edition timing machine at time of cataloging. It is provided as a courtesy only, and shall not be construed as a warranty or guarantee of any kind. Please refer to our terms and conditions of sale for more information.
Condition
Watch is in very good overall condition. Case shows surface wear commensurate with age. The brushed lug surfaces have a shiny finish from wear. Engine turned bezel retains most of its original shape but some definition has been lost over time. The original black gilt dial in very good condition with signs of aging including some scratches and marks on the surface. Luminous material in hands appear lighter in tone compared to the luminous on the dial.
Our Perspective
Blending the Datejust's classy design, the Bubbleback's charm, and the sizing of Rolex's sportier models, the Ovettone reference Datejusts have become brilliantly collectible as they give collectors a sense of truly vintage horology in a package that is not too removed from modern sizing.