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)

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

Product ID: 426137899

Details

Battery Capacity
53 Milliamp
Battery Cell Composition
Silver Oxide
Brand
Renata
Number of Batteries
2 Product
Recommended Uses For Product
Calculators

⚡1.55V Nominal Voltage

🔋53mAh High Capacity

🛡️Superior Leakage Resistance

7059CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Stay powered, stay ahead — never miss a moment!

SWISS PRECISION - Crafted with Swiss quality for dependable, leak-resistant power every time.
POWER THAT LASTS - Reliable 1.55V output ensures your devices stay energized longer.
ENDURING CAPACITY - 53mAh capacity delivers consistent performance with low self-discharge for extended shelf life.
DOUBLE PACK CONVENIENCE - Two batteries included to keep your critical devices running without interruption.
VERSATILE COMPATIBILITY - Perfect for watches, cameras, calculators, car alarms, and keyless remotes—stay powered across all essentials.

Renata 399 SR927W Silver Oxide batteries provide a stable 1.55V power source with 53mAh capacity, engineered in Switzerland for superior leakage resistance and long shelf life. Ideal for precision devices like watches, cameras, and keyless car remotes, this 2-pack ensures your essential electronics perform flawlessly when you need them most.

Specifications

ASIN	B09VVNG6SL
Antenna Location	Calculators,Camera,Car Security Alarm,Keyless Car Remotes,Watch,Watches
Battery Capacity	53 Milliamp Hours
Battery Cell Composition	Silver Oxide
Battery Cell Type	Silver Oxide
Best Sellers Rank	#27,765 in Health & Household ( See Top 100 in Health & Household ) #177 in Coin & Button Cell Batteries
Brand	Renata
Built-In Media	Battery
Customer Reviews	4.6 out of 5 stars 2,339 Reviews
Item Weight	9 Grams
Manufacturer	Renata Batteries
Number of Batteries	2 Product Specific batteries required. (included)
Recommended Uses For Product	Calculators,Camera,Car Security Alarm,Keyless Car Remotes,Watch,Watches
Reusability	Single Use
UPC	040048065517
Unit Count	2.0 Count
Voltage	1.55 Volts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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7059CFA

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

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TrustScore 4.5 | 7,300+ reviews

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