The Rolex GMT-Master reference 1675, a legendary watch celebrated for its robust build and iconic two-time-zone functionality, holds a special place in horological history. Its enduring appeal lies not only in its heritage but also in its relatively straightforward, albeit slightly nuanced, setting mechanism. This guide will walk you through the process of setting your vintage Rolex GMT-Master 1675, providing a detailed explanation for both the time and the GMT hand. Whether you're a seasoned collector or a new owner of this coveted piece, understanding its intricacies will allow you to fully appreciate and utilize its unique capabilities. Before we begin, remember that while this guide offers detailed instructions, consulting a professional watchmaker for any significant adjustments or repairs is always recommended.
Understanding the Rolex GMT-Master 1675:
Before diving into the setting procedure, let's briefly understand the watch's key components. The Rolex GMT-Master 1675 features a distinctive 24-hour bezel, typically in black or a coveted "Pepsi" (red and blue) configuration. This bezel allows you to track a second time zone independently from the main time display. The hour hand, minute hand, and seconds hand function as you'd expect in a standard watch. However, the GMT hand (often a slightly longer hand, sometimes arrow-tipped, and sometimes a different color) makes a full rotation in 24 hours, indicating a second time zone. The crucial element to remember is that the GMT hand is independent of the hour hand and can be adjusted without affecting the main time setting.
Setting the Time on your Rolex GMT-Master 1675:
The 1675, like many vintage Rolexes, uses a crown-operated setting system. This means all adjustments are made using the winding crown located at the 3 o'clock position. Here's a step-by-step guide:
1. Unscrew the Crown: Gently unscrew the crown by turning it counter-clockwise. The number of turns required varies slightly depending on the specific model and service history, but it usually requires around two to three turns. Avoid forceful twisting, as this can damage the crown or the movement.
2. Pull the Crown to the First Position: Once the crown is unscrewed, gently pull it out to the first position (one click). In this position, you can adjust the date. Turn the crown clockwise to advance the date, and counter-clockwise to rewind it. Take your time, ensuring the date changes smoothly. Remember, changing the date between 9 PM and 3 AM can potentially damage the movement, so it's best to avoid this time frame.
3. Pull the Crown to the Second Position: Now, pull the crown out to the second position (a second click). In this position, you can adjust the hour and minute hands. Rotate the crown clockwise to set the time forward and counter-clockwise to set it backward. Ensure the hour and minute hands move smoothly and accurately. Pay attention to the minute hand as you adjust the time, as it’s easily possible to accidentally skip over a minute or two.
4. Push the Crown Back In: Once the time is correctly set, gently push the crown back into its original position. Ensure it's securely screwed down to maintain the watch's water resistance.
Setting the GMT Hand on your Rolex GMT-Master 1675:
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