They just show ( best before ) on the package. There is no date of manufacture. They usually last five years though. I always pull out the stem on my watches when I don’t use them for awhile to save the battery.

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Renata 399 SR927W Batteries - 1.55V Silver Oxide 399 Watch Battery (2 Count)

Product ID: 587893221

Details

Battery capacity
53
Battery cell composition
Silver Oxide
Brand
Renata
Number of batteries
2 Product
Recommended uses for product
Calculators

⚡1.55V Nominal Voltage

🔋53mAh High Capacity

🇨🇭Swiss Precision Quality

14610CFA

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In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your essentials with Swiss precision — never miss a moment!

LOW SELF DISCHARGE TECH - Keeps battery fresh in storage, ready when you need it most.
LEAKAGE RESISTANT DESIGN - Engineered to prevent corrosion and protect your valuable electronics.
LONG LASTING POWER BOOST - Reliable 1.55V output ensures your devices stay energized longer.
ULTRA COMPACT VERSATILE - Fits seamlessly in watches, remotes, cameras, and more for all-day performance.
TRUSTED SWISS CRAFTSMANSHIP - Consistent, premium quality that professionals and enthusiasts rely on.

Renata 399 SR927W is a premium 1.55V silver oxide watch battery delivering 53mAh capacity with superior leakage resistance and low self-discharge. Designed in Switzerland for reliable, long-lasting performance across watches, keyless remotes, cameras, and more, this 2-pack ensures your critical devices stay powered with trusted quality.

Specifications

Antenna Location	Calculators,Camera,Car Security Alarm,Keyless Car Remotes,Watch,Watches
Asin	B09VVNG6SL
Battery Capacity	53
Battery Cell Type	Silver Oxide
Best Sellers Rank	#27,845 in Fashion (See Top 100 in Fashion) #47 in Watch Batteries
Brand	Renata
Built In Media	Battery
Compatible Phone Models	watch battery
Customer Reviews	4.6 4.6 out of 5 stars (1,781) 4.6 out of 5 stars
Item Weight	9 Grams
Manufacturer	Renata Batteries
Number Of Batteries	2 Product Specific batteries required. (included)
Reusability	Single Use
Unit Count	2 Count
Upc	040048065517
Voltage	1.55 Volts
Warranty Description	No Warranty

Reviews

User

Easy way to save money

Great replacement battery for a tissot and a fraction of the price for a replacement at timpsons

4.09.2017

User

It works well.

I have got the exact battery for my watch.

9.04.2026

User

Super

Sehr gut

17.03.2026

User

Spedizione e materiale perfetto

3.08.2023

User

399 wach

Thank you for my order and the seller is excellent and the quality and. value for money and good battery life

3.01.2026

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14610CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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2 months ago

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Customer service was outstanding when I had questions about the product.

2 days ago

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