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

🔋53 mAh High Capacity

🇨🇭Swiss Precision Quality

78.58 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

DUAL PACK CONVENIENCE - Two batteries included to keep your essential gadgets running without interruption.
LOW SELF DISCHARGE TECH - Keeps battery fresh in storage, ready when you need it most.
LONG LASTING POWER BOOST - Reliable 1.55V output ensures your devices stay energized longer.
ULTRA COMPACT VERSATILITY - Perfect fit for watches, cameras, remotes, and more—power on the go.
PREMIUM SWISS CRAFTSMANSHIP - Consistent, leak-resistant performance you can trust every time.

Renata 399 SR927W Silver Oxide batteries deliver a stable 1.55V and 53 mAh capacity with superior leakage resistance and low self-discharge. Crafted in Switzerland, these ultra-compact batteries are ideal for watches, cameras, keyless remotes, and more, ensuring reliable, long-lasting performance in a convenient 2-pack.

Specifications

ASIN	B09VVNG6SL
Antenna Location	Calculators,Camera,Car Security Alarm,Keyless Car Remotes,Watch,Watches
Battery Capacity	53
Battery Cell Type	Silver Oxide
Best Sellers Rank	#28,040 in Fashion ( See Top 100 in Fashion ) #52 in Watch Batteries
Brand	Renata
Compatible Phone Models	watch battery
Customer Reviews	4.6 4.6 out of 5 stars (1,810)
Included Components	Battery
Item Weight	9 Grams
Manufacturer	Renata Batteries
Number of Batteries	2 Product Specific batteries required. (included)
Reusability	Single Use
UPC	040048065517
Unit Count	2 Count
Voltage	1.55 Volts
Warranty Description	No Warranty

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78.58 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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1 month ago

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