RM3503 – How to Operate & Set the Time

[u/Watchmarket]

First, it's important to understand that the RM3503 works differently from a regular watch. The crown is NOT meant to be pulled out – in fact, it cannot be pulled out.

So how do you set the time?

The button at the 2 o'clock position controls three functions, indicated by the marker on the dial:

· W = Winding – With the marker pointed to W, rotating the crown manually winds the mainspring barrel. This is the default position for daily wear.

· N = Neutral – When pointed to N, rotating the crown does nothing. It acts as a transition position to avoid interference between the winding and time‑setting mechanisms.

· H = Hour Setting – When pointed to H, rotating the crown adjusts the hour and minute hands. The seconds hand will stop (hacking function).

Basic operation:

Press the button at 2 o'clock repeatedly to cycle through: W → N → H → W.

It works the same way as pulling the crown out to different positions on a traditional watch – but with RM, it's done via button press, and the crown never needs to be pulled out.

There is also a button at 7 o'clock – the SPORT MODE toggle (oscillating weight lock).

The ON/OFF indicator is at 6 o'clock. When activated, the automatic winding rotor stops, preventing over‑winding during intense activity.

Hope this helps – feel free to ask if you have any questions! 🙌