Question about Sector 450 2653450035 Wrist Watch

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How deep can I dive with this watch

I'm planning to go on a diving safari and was wondering if it would be safe to dive with it. Any ideas?

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Re: How deep can I dive with this watch

Citizen watches prescribe "300 metres" (990 feet) to be adequate for scuba diving at depths not requiring helium gas. Therefore, there's no guarantee that a "200 metre" watch will survive ordinary scuba diving - I certainly wouldn't risk it beyond 20 metres (66 feet). I think "200 metres" is adequate for what Citizen refers to as 'skin diving' - snorkeling & free diving, I guess.

Posted on Nov 21, 2007

Re: How deep can I dive with this watch

My expander 202 went till 42meters with no problem (about 138 feet) 

Posted on Oct 11, 2007

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Re: How deep can I dive with this watch

Per "Sector" all of their watches are "water resistant to a minimum of 300 feet". Note that they do not say "water proof".

Posted on Aug 20, 2007

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How do I use the moveable outer numbered ring on the t49825dh?

The numbered bezel can be used by divers to measure elapsed time on their oxygen supply. Place the zero where the minute hand is now and you'll know when 20 or 30 minutes have passed when the minute hand reaches bezel number 20 or 30.

In the same way, you can use the bezel to tell when 30 minutes have passed on your parking meter if you simply put the 0 on the minute hand when you leave the car. When the minute hand reaches the 30 mark, a half hour will have passed.

Typically, the bezel only turns counterclockwise to keep the wearer from bumping and changing the elapsed time number. On some less expensive watches, the numbered bezel does not turn and is decorative only.

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Battery replace for Citizen Cyber Aqualand NX

My Cyber was working fine and reporting a full charge, but when diving, it would stop working and go into safe mode. I sent it in to Citizen and they replaced the cell, now all is good again.

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Which way does the bezel turn on a tag watch

Tag Heuer watches are constructed with scuba-diving bezels-- that is to say, it only turns COUNTERCLOCKWISE. This is so that when you are diving, you set the triangle marker to the time you went down. If you accidentally bump your watch while diving, it will move only counterclockwise, leading you to think you have LESS time left to dive, which is so much safer than thinking you have MORE time to dive, than you really do.

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My battery is out on my Jaques Leman diving watch. I wanted to repair it myself. I was told if I took the back off I would break the seal. Im attempting to fix it myself

Thank you for contacting FixYa.
If you have a good quality scuba dive watch that needs to be repaired, such as needing a battery replacement, it can be tempting to do it yourself. After all, don't you just need a screwdriver, a battery and rubber gasket (possibly)?
Well, yes. But if you do it yourself, you run the risk of voiding the warranty.
So if you change it yourself and the watch later floods, you are out of luck. So check your warranty information carefully before you attempt to do anything yourself or have someone other than the manufacturer/authorized dealer do the work.
If the manufacturer changes the batteries or does any other dive watch repair, they will normally retest the watch and certify that it is still water resistant to whatever level applies.
This is not to say that a qualified watch repair shop can't do the job. It's your decision but at least it will be an informed one.
So the long and short of dive watch repair - if it's a good dive watch, you'll probably want the manufacturer/authorized dealer to handle it if you don't want to void the warranty. A cheap dive watch? Probably not worth the bother.

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Removing Links from the Stauer Atomic Watch band

Click on my profile (escapement), then click on Tips and Tricks. There you will find tip how to add or remove links. Rate me, please .

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Perhaps you have not instructed it to start recording?

I cannot gain access to the instructions for you watch as the site require me to enter the watch number.

If you have not got the instructions, go to "", select "support" , then "manuals", then "watches"; agree terms and conditions; select "archive...".

Enter the number off the back of your watch and download instructions.

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1 Answer

Previously accurate Seiko dive watch suddenly gaining 1-2 hrs/day

if your watch caliber is 7s26b(look at the case back plate)is a usual problem of those calibers!the hair spring stuck somehow and the watch runs!a seiko authorized sevice center can help you!dont let anybody else magician to ruin your watch!is a routine repair for someone with knowledge and support from seiko!

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Why do the Omega Seamaster watches have a second crown close to the top of the watch? What is its function?

This is a helium release valve.
The purpose and function of the helium relief valve is a common point of confusion. It has nothing to do with normal underwater diving. Neither does it have anything to do with the depth rating for a diving watch. Helium does NOT seep into the watch while the watch is in water at any depth!

To put it simply, you can completely ignore a helium relief valve. This feature is not used in any way with any form of normal SCUBA diving or anything else that involves less than a multi-million dollar deep sea exploration project.

SCUBA diving activities normally occur at depths of no more than 120 feet. At 250 feet, air becomes toxic due to changes caused by the high pressures at such depths. For those who do very deep sea research, they often use diving bells, dry dive suits, and other types of very deep ocean exploration vessels. In some of these, a highly helium-saturated atmosphere is used to avoid the air toxicity effect.

The purpose of a helium release valve is for people who wear their watch inside the helium-saturated environment for an extended period. Because helium is the smallest atom, it will seep through the watch's seals under the high air (not water) pressures in this environment. If the watch stays in this environment for an extended time, helium will continue to seep in to the watch until the air pressure inside the watch (initially surface air pressure) equalizes to the air pressure in the environment.

This becomes a problem when the vessel is brought back up and depressurized. The helium which seeped into the watch over a couple of days, cannot seep out any faster. The excess pressure inside the watch needs a way to release faster than it seeped in. It is only in this situation that a watch needs a helium relief valve at all. If a relief valve was not on the watch, the excess pressure would likely escape by pushing the crystal out.

But, unless you are in this exact situation, you should never keep this valve open. While the watch is designed to maintain most of its waterproof abilities even when the valve open, it still serves no purpose and increases risk of damage to the watch to do so.

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1 Answer

Can i dive with this watch?

You definetely CAN NOT dive with this watch. It is good for swimming and snorkeling only. Real divers watches withstand at least 200 meters of depths and are specialy designed for it.
One of the best affordable divers watch manufacturers novadays is Seiko. Check Seiko website and learn about divers watches and all the features they have. List of waterproof markings and explanations are also available.
Do not forget to rate, please.

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