Rolex Submariner 

Rolex Submariner 1953 (left) and 2016 (right)

Aside from the 15 minute marks on the bezel and pencil-shaped hour and minute hands, there is little difference between the original Submariner, released in 1953, and the current 2016 model in terms of aesthetic. Many technical improvements have been made, however, including an improved depth rating of 300 meters from the original's 100 meters. The crystal, movement, bezel and steel have also been upgraded over time to reflect the watchmaker's current patented innovations.

Rolex GMT-Master II

Rolex GMT-Master II 1982 (left) and 2016 (right)

The first GMT-Master II model was introduced in 1982, an improvement upon the GMT-Master that was released in 1955. The first GMT2 featured what has come to be known as the 'Coke' bezel in black and red. Rolex currently offers the stainless steel GMT-Master II model with either a black bezel or the blue and black bezel shown in the photo above, known as the 'BLNR' or 'Batman' by collectors. Aside from the bezel configuration and materials, this model has changed very little in the past thirty years.

Rolex Explorer II

Rolex Explorer II 1971 (left) and 2016 (right)

The Explorer II model made its debut in 1971 and, as you can tell from this photo, is still relatively unchanged. The minor adjustments to the aesthetic include the round hour markers, Mercedes hour hand shape, the markings on the stainless steel bezel and the orange lettering of the model name on the dial. The characteristic orange 24-hour hand of this model remains unchanged, even on the white dial configuration that has become popular in the past few years.

Rolex Milgauss

Rolex Milguass 1956 (left) and 2016 (right)

The Milgauss model was designed specifically for scientists and engineers in 1956 to help protect the movement from magnetic fields. The name combines the French term for a thousand with the word gauss, a unit of magnetic induction. It retains the signature lightning bolt seconds hand, but the current model is perhaps the most divergent from the original of this group. It now features a smooth steel bezel with green and orange accents on the dial.

Rolex Cosmograph Daytona

Rolex Cosmograph Daytona 1963 (left) and 2016 (right)

The most coveted model on this list, the 2016 Daytona model features a black bezel and white dial configuration more similar to the 1965 Daytona than the original 1963 version pictured above. However, this iconic chronograph is still evocative of the era in which is first appeared. Popularized by actor and race car driver Paul Newman, the Daytona model features a tachymeter used to measure a driver's average speed around the racetrack.

For more information on the original model configurations, visit the Rolex History page and check out the historical timeline featuring original model release dates and other historical events that contributed to the legacy of the watchmaker. For more information on the current models including model comparisons, click on Rolex Models.