Owning a Rolex Submariner means interacting with a piece of engineering designed for precision and reliability. Yet even the most robust mechanical movement requires occasional user input, particularly when the need to change the time arises. Whether you are preparing for a international flight or simply adjusting for daylight saving, understanding the correct procedure is essential for maintaining the integrity of your watch. This guide provides a detailed walkthrough, ensuring you master this fundamental skill without risking damage to your instrument.
Preparing Your Watch for Time Adjustment
Before manipulating the crown, it is critical to position the watch correctly to protect the internal mechanism. The crown is the primary interface between the wearer and the movement, and mishandling it is the leading cause of watch repairs. You must ensure the watch is dry and stationary on a stable surface. Attempting to adjust the time while the watch is moving, wet, or subjected to vibration can force water into the case or stress the winding gears. Patience at this stage is the first step toward a successful adjustment.
Identifying the Crown Position
The Rolex Submariner features a screw-down crown, which serves to enhance water resistance. You will notice the crown is not in its final operating position until it is fully screwed back in. To prepare for setting the time, you must first unscrew the crown completely by turning it counter-clockwise. Once it is free from the case, you can gently pull it outward to the second click position. This specific position disconnects the hour and minute hands from the gear train, allowing for precise adjustment without the stuttering motion associated with the third click.
The Step-by-Step Time Setting Process
With the crown prepared, you are now ready to adjust the time. The process is linear and requires a gentle touch rather than forceful manipulation. Avoid the urge to rush; adjusting the hands slowly allows you to observe the alignment of the second hand and ensures accuracy. Follow these steps methodically to achieve the correct time.
Gently pull the crown to the second position.
Rotate the crown clockwise to move the hands forward.
Pass through the 12 o'clock position carefully to avoid over-advancing.
Stop once the desired time is reached.
Observe the seconds hand to confirm the setting is solid.
Avoiding the "Am/PM" Mistake
A common error when learning how to change the time on a Rolex Submariner is inadvertently shifting the date or, worse, the AM/PM indicator. The Submariner's 24-hour bezel means the hour hand completes two full rotations per day. If you rotate the crown too far past the 12 o'clock mark during the first pass, you will switch the watch from day to night, causing a 12-hour discrepancy. To prevent this, always stop the second hand exactly at the time you wish to set, resisting the instinct to overshoot.
Securing the Crown and Final Verification
Once the time is accurate, securing the crown is just as important as adjusting it. A loose crown compromises the water resistance that defines the Submariner's legacy. You must screw the crown back into the case firmly. Use a deliberate twisting motion until you feel it engage with a firm resistance. Do not merely push it in; it must be rotated clockwise until it is completely flush against the case. This action locks the gasket in place, ensuring the watch remains sealed against the elements.
Checking the Seal
After screwing the crown down, perform a quick verification. Hold the watch horizontally and gently rotate the crown slightly. If it turns even a fraction of a degree without resistance, it is not fully seated. A properly secured crown should feel rigid and immovable. Additionally, you should check the alignment of the hands against the dial. They should glide smoothly without any visible "shuddering," indicating the motion is continuous and the mechanism is releasing properly.
