Where can I get a 333 battery - Piaget Watches

This is an interesting watch as it is two in one, Analogue and Digital, with a separate battery powering each function.

The battery type is engraved into the flat side of the battery. It is best left to a local jeweler or service where you send it away for service.

It is always difficult to find battery types listed, but you could try Seconda direct. They can even vary within the same maker.

https://www.google.com/search?q=Sekonda+03710+watch+replacement+battery+type

I wrote this Fixya Tip article on watch batteries.

https://www.fixya.com/support/r27181038-changing_watch_batteries

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The size of the battery required for a Honora watch will depend on the specific model of the watch. However, most Honora watches use a standard watch battery known as a silver oxide battery or button cell battery. The most common size used in watches is the 1.55 volt button cell battery, which is also known as the SR626SW battery or the 377 battery.
To ensure that you purchase the correct battery for your Honora watch, it's always best to refer to the owner's manual or contact Honora's customer service for more information. Additionally, many jewelers or watch repair shops will have the necessary batteries on hand and can assist with battery replacement if needed.

I can't find much on the watch. Sweda is one company, and Lifeline is another.

https://www.google.com/search?q=Sweda+Lifeline+watch

Look inside the watch and look for an engraved number near the battery socket. If nothing there, a local jeweler will have a battery that fits the space. Voltage is 1.55 volts, silver oxide are best.

Watch Battery Size Chart - 377 Watch Battery Replacement
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I think so but without knowing model and make??? Try these links for the batteries.
40 Pcs of Assorted Batteries Super Alkaline Set Watch Calculators Cameras... Maxell CR2016 3V Lithium Coin Battery 5 Pack Energizer CR2430 Battery CR2430 Standard Batteries CDW com Duracell Battery Silver Oxide Watch Electric 377 1 battery

Try replacing the battery!

Duracell Battery Silver Oxide Watch Electric 377 1 battery Duracell Battery Silver Oxide Watch Electric 377 1 battery SONY 377 SR626SW Silver Oxide Watch Battery 1 55V 29 mAh Low Drain SR626SW... CR2032 3V Micro Lithium Genuine KEYKO Lithium Button Coin Battery 50 pcs...

http://www.apexbattery.com/timex-a-battery-watch-batteries-timex-watch-batteries.html

There are MANY wholesale watch suppliers here are a couple
Livesay's (tell them Keith's Clock and Watch Repair sent ya!) 456 W. Columbus DriveTampa, FL 33602 (813) 229-2715
Another supplier we use is:
Barton & Chase Inc.

(800) 333-1961
These are both VERY nice companies to deal with.
I hope this helped!!

You can find the Cross Reference Chart here:
http://www.shorinternational.com/watchbatterycrossref.htm
It shows that your battery type Renata 333 (Swiss) is discontinued.

and from here:
http://www.jewelerstoystore.com/Renata_Watch_Battery_p/b1-333.htm
It shows that your battery type costs $101.85 (on sale).

Doy you really want to buy that battery?

Remove the four screws that hold the battery cover on the back of the watch. Remove the 3 very small screws that hold the battery in place. Remove the battery from the battery holder. The piece that the 3 small screws were removed from seperates from the 3 volt 2016 energizer battery. Replace the battery with a new one. Re-install the battery holder to the watch. There is a small tab on the lower left part of the battery holder that needs to be depressed to activate the watch. Depress it and look at the face of the watch to make sure it is activated. The watch will need to have the time, date etc reset but you should now be able to see that the battery is working. Replace the battery cover and reset the time and date as needed.

http://www.apexbattery.com/relic-watch-battery-watch-batteries-relic-watch-batteries.html ... I've had 2 different sources take me to this same battery, although the Relic model I'm using is a ZR11586. "This battery is for ALL Relics," is what they keep saying.