The Stirling Timepieces Brunt incorporates the NH35 automatic movement. Those familiar with the NH35 movement will recognise it for its durability and robust nature, it was picked with the user in mind.


Although our timepieces are hand crafted and assembled by skilled watchmakers, we understand things can go wrong. Fortunately, in the unlikely event that you do experience a fault our watches are mechanically guaranteed. All parts (excluding the strap and buckle) are covered by our guarantee and will either be repaired or replaced. If you experience any faults please do not hesitate to get in touch.


The strap and buckle of your timepiece will not be covered. Neither will damage caused by negligence or lack of care. This includes normal wear and tear as well as water damage caused by incorrectly securing the crown and allowing water to enter the dial. We always recommend you check your crown positioning before entering water as this is one of the most common user faults. 


Slightly pull the crown out to the first click and rotate counter-clockwise to select the date. Twist the crown gently as to not cause misalignment to the gears. Misalignment can cause the gears to be damaged over a period of time.

Do not adjust the date between 9PM and 3AM. In the NH35 movement the gears are engaged during this time and movement of the gears can cause misalignment which could inflict damage on the gears.


When the crown is pulled to the third position you will notice that the second hand will stop. From here, move the hands clockwise to set the time.


In order to free the crown it first needs to be unscrewed anti clockwise until the crown pops open. Once the crown has popped it can then be rotated clockwise to wind it. All Stirling models rely on an automatic movement. Constant use of the watch will ensure the watch continues to run. A fully wound watch can rely on its approx 50 hour power reserve to keep it moving before it stops.

Incorrectly securing the crown is one of the most common user faults when operating a dive watch, so it’s crucial you ensure it is seated correctly. To secure the crown, apply pressure straight towards the watch case and screw the crown clockwise until it is completely flat against the case. Always ensure that the crown is secured to avoid possible exposure to dust and moisture. If the crown is not secured correctly, water will enter the dial and damage the internals.

Some final take away points:

We want to help: If you have any problems with your Stirling watch and are unsure if you are covered, get in touch with a member of the team. We are here to help and will always work with you to offer a solution to the problem.

Watches aren't 100% waterproof. All watches are in fact water resistant in line with their guidance and thresholds as per manufacturing. All Stirling Timepieces are factory tested up to 200m (20atm) and are more than capable of dealing with such experiences. Although we can guarantee that, we DO NOT recommend you wear your Stirling Timepiece in any location that will expose the watch to unnecessary heat or hot water. This includes the shower, bath, steam room or a hot tub. Such conditions may cause the seals to swell and allow water to enter its internals. Although this is uncommon in our watches, we always recommend against taking the risk. A prolonged exposure to heat or steam can sometimes leave a build up of moisture underneath the sapphire face which will cause problems to the mechanism. 

Avoid a watch winder. A watch winder will keep your watch running, but in reality it will expose your watch to continuous wear and tear on the movement. Your Stirling has a 50 hour power reserve, take if off for a day and it will still be ticking.