Rolex Sub, lost time
Discussion
Testing needed... Simplest answer is that it may have run down overnight due to lack of winding, and then restarted as soon as you picked it up to look at it. Autos don't respond well to sedentary lifestyles (i.e. desk jobs).
Unscrew the crown and give it 40 turns, set the time and leave unworn for 24hrs. If timekeeping is OK, then the spring and mechanicals are OK. If not, back to the dealer.
If OK, next thing to test is the rotor and auto-winding. You need to let it run down; unscrew the crown, give it a few winds to get it going and then wear it all day. If it's still running the accurately in the morning, then that rules that out!
3 hours lost time on a normal watch would suggest magnetisation, but that can't happen with a 12 month old Rolex' Parachrom hairspring. I have no idea if the spring can hang up after a knock though...
Unscrew the crown and give it 40 turns, set the time and leave unworn for 24hrs. If timekeeping is OK, then the spring and mechanicals are OK. If not, back to the dealer.
If OK, next thing to test is the rotor and auto-winding. You need to let it run down; unscrew the crown, give it a few winds to get it going and then wear it all day. If it's still running the accurately in the morning, then that rules that out!
3 hours lost time on a normal watch would suggest magnetisation, but that can't happen with a 12 month old Rolex' Parachrom hairspring. I have no idea if the spring can hang up after a knock though...
Mr Aston Martin said:
It's a daily wear and I haven't wound it since buying new as i thought my movement would keep the watch wound?
It >should< do. But perhaps your movement is not quite enough, it does happen.Let;s see where you are in a couple of days. Has it kept time since this morning?
Bear in mind that, if it's been daily wear for a year before it did tis then you'd only need to be a tiny bit under the required amount of movement.
The 3135 has a 50 hour power reserve so, assuming a "steady" loss of wind since you've had it, that's about 8 - 9 minutes worth of reserve you've used each day, which is maybe half a dozen shakes of your wrist. It's more likely that you've had a fairly sedentary couple of weeks and it's run down during that.
The only other thing to be aware of for a sudden overnight loss is a slipping cannon pinion. Magnetism or other escapement problems will tend to make a watch run fast rather than slow by either effectively shortening the hairspring (causing a huge gain) or creating a magnetic force which will tend to supplement the hairspring in returning the balance to centre - which, again, will make the watch speed up.
The CP is effectively a slipping clutch between the movement and the hand / date work under the dial. Without it it'd be impossible to set the time without destroying the movement.
If the CP is a little loose then the extra load imposed by the date change can cause it to slip, which allows the hour and minute hands to lose time. Because the seconds hand is driven directly it will continue running as normal.
You can get an idea of whether there's likely to be a problem with the CP by the "weight" of the handset - when you set the time there should be a definite, smooth, resistance to turning the crown. If it's very "light" to turn, or if the minute hand "jumps" significantly when you push the crown back in, then it's likely to be loose.
It can take a little experience to judge what's "tight enough" when the crown has seals because the seals will also create resistance but it should take a little more effort to turn the crown in handset than it does to turn it "backwards" in the wind position (where the only significant resistance is the crown seals).
Keep it wound and see how it goes for a while, if in doubt then get it checked - a loose CP is a simple fix, but better to have it done inside guarantee if it turns out to need it than to find yourself paying for the inevitable "service as well" if it starts playing up regularly once the guarantee's expired!
The 3135 has a 50 hour power reserve so, assuming a "steady" loss of wind since you've had it, that's about 8 - 9 minutes worth of reserve you've used each day, which is maybe half a dozen shakes of your wrist. It's more likely that you've had a fairly sedentary couple of weeks and it's run down during that.
The only other thing to be aware of for a sudden overnight loss is a slipping cannon pinion. Magnetism or other escapement problems will tend to make a watch run fast rather than slow by either effectively shortening the hairspring (causing a huge gain) or creating a magnetic force which will tend to supplement the hairspring in returning the balance to centre - which, again, will make the watch speed up.
The CP is effectively a slipping clutch between the movement and the hand / date work under the dial. Without it it'd be impossible to set the time without destroying the movement.
If the CP is a little loose then the extra load imposed by the date change can cause it to slip, which allows the hour and minute hands to lose time. Because the seconds hand is driven directly it will continue running as normal.
You can get an idea of whether there's likely to be a problem with the CP by the "weight" of the handset - when you set the time there should be a definite, smooth, resistance to turning the crown. If it's very "light" to turn, or if the minute hand "jumps" significantly when you push the crown back in, then it's likely to be loose.
It can take a little experience to judge what's "tight enough" when the crown has seals because the seals will also create resistance but it should take a little more effort to turn the crown in handset than it does to turn it "backwards" in the wind position (where the only significant resistance is the crown seals).
Keep it wound and see how it goes for a while, if in doubt then get it checked - a loose CP is a simple fix, but better to have it done inside guarantee if it turns out to need it than to find yourself paying for the inevitable "service as well" if it starts playing up regularly once the guarantee's expired!
Gassing Station | Watches | Top of Page | What's New | My Stuff