NH35A Power Reserve Issues? Lorier Neptune ii

I picked up this very cool used Lorier Neptune v ii (after a very helpful community discussion here on which dive watch to get next!)

I love it - but have noticed the power reserve is almost non-existent. I set it, wind it in the morning (20-30 turns, but I have even experimented with 50-60) wear it for my waking hours (low impact) and when I wake up in the morning it has stopped after just a few hours off the wrist.

Is this a common problem with the NH35A? Any idea what the fix could be (short of swapping out the movement?)

Thanks!

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The power reserve should last longer than that. It could possibly be magnetized, you could check it with a compass or the Lepsi app.

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You could check up with the previous owner to see if this problem was there before. Maybe can get an idea abd then you can look into a fix. NH35 is very easy to replace so it shouldn't be a hassle.

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southernwatch

The power reserve should last longer than that. It could possibly be magnetized, you could check it with a compass or the Lepsi app.

Cool tip, I'll do that. Thanks.

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nightfury95

You could check up with the previous owner to see if this problem was there before. Maybe can get an idea abd then you can look into a fix. NH35 is very easy to replace so it shouldn't be a hassle.

According to him it was running smoothly previously. I'm not devastated by the prospect of swapping out for a new nh35 I'd just rather not sink more money into the watch just now.

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southernwatch

The power reserve should last longer than that. It could possibly be magnetized, you could check it with a compass or the Lepsi app.

MAGNETISM DETECTED

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88MilesPerHour

MAGNETISM DETECTED

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Thanks, I hope it's an easy fix. I have a watchmaker who can give it a try before I invest in equipment.

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NH35A should have a 40-hr. power reserve and is fully wound in 55 turns.

Go ahead and get a demagnetizer, they're cheap and then you have it on hand when needed, they're only $10-20.

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Was the watch keeping good time? Typically watches will run fast when magnetized in addition to showing other symptoms.

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GoingTopShelf

Was the watch keeping good time? Typically watches will run fast when magnetized in addition to showing other symptoms.

Seemed fine for the 8hrs at a time I was wearing it, but I'm not a "to the second" watch guy.

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NH35 is historically a robust movement with up to 40 hrs power reserve when functioning correctly or full wound. Whilst I have not tried this, Marc from Long Island Watch did a Watch and Learn vid about mainsprings binding up on occasion, and his fix was a right hand into left palm love tap once or twice to free it up. I think a service with a re-grease is a long term fix. I have never had a watch magnitized before so I can't comment on that. Let us know your results. Cheers.

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Previous comments about magnetism and binding are more than likely culprit. My Neptune SIII has been magnetized twice so far. It's not really the watches fault since both times I was in fact around large magnetic fields lol.

Also if you keep the watch right next to your phone/on your phone while charging or at night that can lead to magnetization.

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solidyetti

Previous comments about magnetism and binding are more than likely culprit. My Neptune SIII has been magnetized twice so far. It's not really the watches fault since both times I was in fact around large magnetic fields lol.

Also if you keep the watch right next to your phone/on your phone while charging or at night that can lead to magnetization.

It’s strange because I’ve owned the Neptune S3 as well and it’s also been magnetized more than once. It’s the only automatic watch I own that has had that happen to it.

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My only NH35 watch is my Invicta Pro Diver and I would relate it to a Toyota Corola engine (or Tacoma for the Pick Up truck people). As mentioned by others, the demagnitizer is the lowest cost solution, but even if you have to service it, the movement is easy to get and to work with (for qualified personnel of course).

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I read this post a few hours ago and agreed that magnetization might be the culprit. Nothing to add, no joke to tell, so I moved on.

I sometimes wind tomorrow's watch the night before. Today I wore this:

Image

Admittedly, not powered by a NH35. For fifteen hours it ran perfectly. After lunch I noticed that it was a tad slow. Then, it started losing five minutes an hour. I switched to the back-up office watch (maybe that is just a vintage collector thing, but there is always a functioning watch in the office desk drawer for emergencies).

When I got home I ran it on the Amazon cheapie de-magnetizer. It shook like it was possessed. An hour later and it is running on time. The de-magnetizer is money well spent.