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: 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

6724CFA

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Description

🔋 Power your life with Swiss precision and never miss a beat!

LONG LASTING ENERGY - High capacity retention with low self-discharge keeps you powered longer
LEAKAGE PROOF DESIGN - Protects your valuable electronics with superior leakage resistance
VERSATILE COMPATIBILITY - Perfect for watches, cameras, keyless remotes, and more
TRUSTED BY PROFESSIONALS - Rated 4.6 stars by over 2,300 users—join the savvy crowd
PRECISION SWISS ENGINEERING - Consistent, reliable power for your essential devices

Renata 399 SR927W Silver Oxide batteries deliver a stable 1.55V output with 53mAh capacity, engineered in Switzerland for superior leakage resistance and long shelf life. Ideal for watches, cameras, keyless remotes, and other precision electronics, these batteries combine reliability and versatility to keep your devices running smoothly.

Specifications

ASIN	B09VVNG6SL
Antenna Location	Calculators,Camera,Car Security Alarm,Keyless Car Remotes,Watch,Watches
Battery Capacity	53 Milliamp Hours
Battery Cell Type	Silver Oxide
Best Sellers Rank	#29,433 in Health & Household ( See Top 100 in Health & Household ) #195 in Coin & Button Cell Batteries
Brand	Renata
Built-In Media	Battery
Customer Reviews	4.6 4.6 out of 5 stars (2,316)
Item Weight	9 Grams
Manufacturer	Renata Batteries
Number of Batteries	2 Product Specific batteries required. (included)
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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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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5 days ago

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6724CFA

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

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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