Rare Omega Vintage Watch - Speedmaster Mark II Chocolate "Tropical" Dial 145.014

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Reference Number: 145.014

Case Diameter:  42 mm x 45 mm 

Case Material: Stainless Steel

Crown: Fluted with Omega Logo

Crystal:  Mineral

Dial Color: Chocolate Brown "tropical" Dial 

Movement: Swiss Hand-wound Omega Calibre 861

Functions: Hours, Minutes, Seconds & Chronograph

Case Back: Solid

Band Type: New Luxury Brown Leather "Racing" Strap with round holes and cream stitching

Water Resistance: not recomended

Included Items: Watch only



From roughly 1957 to 1965, a flaw in the manufacturing process of black dials used on the Omega Speedmaster Professional line of watches resulted in the occasional fading of the dial to a shade of brown, sometimes described as “tropical brown” or “chocolate.” Long sought after by collectors, anyone who has looked into purchasing a used Omega Speedmaster Professional will be familiar with their extraordinary prices in relation to non-faded pieces. What caused this defect, and what underlies the huge premiums required to bring one of these watches into your collection? Let’s find out.


The fading is a defect caused by the process of dial making during the late 1950’s to early 1960’s. To prevent black dials from fading and losing their vibrancy, a chemical coating was applied to dials before they left the factory, but ironically, after five or so years, in rare cases, the opposite of the intended occurred: the chemical coating reacted with the dial and allowed for faster than normal fading.





No Warranty can be provided for Vintage Timepieces
Country of Manufacture:
Vintage Watch, historical watch, Chocolate Dial, Tropical Dial, Professional Timepiece, Historical Movement
Also Known as:
145, 145014