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.

Renata 399 Sr927w Batteries 1 55v Silver Oxide 399 Watch

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Description

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

DUAL PACK CONVENIENCE - Two batteries included to keep your essentials powered without interruption.
LEAKAGE RESISTANT DESIGN - Protect your valuable electronics with superior leakage resistance.
LONG LASTING POWER BOOST - Keep your devices running longer with 53mAh capacity and low self-discharge.
ULTRA COMPACT VERSATILITY - Perfect fit for watches, cameras, remotes, and more—power wherever you need it.
SWISS MADE QUALITY ASSURANCE - Experience consistent, premium performance from a trusted Swiss brand.

Renata 399 SR927W Silver Oxide batteries deliver reliable 1.55V power with 53mAh capacity, engineered in Switzerland for superior leakage resistance and long shelf life. Ideal for watches, cameras, keyless remotes, and more, this dual-pack ensures your devices stay energized with consistent, high-quality performance.

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
Battery capacity	53 milliamp_hours
Battery cell composition	Silver Oxide
Best Sellers Rank	26,748 in Fashion ( See Top 100 in Fashion ) 54 in Watch Batteries
Brand	Renata
Brand Name	Renata
Customer Reviews	4.6 out of 5 stars 759 Reviews
Included Components	Battery
Item Weight	9 Grams
Manufacturer	Renata Batteries
Model Number	399
Number of Batteries	2 Product Specific batteries required. (included)
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 count
Unit count	2 count
Voltage	1.55 Volts

Reviews

H**H

Just what I needed

Couldn't get these anywhere Fitted perfectly and watches all working

17.03.2026

S**.

Batteries

28.04.2026

F**G

Speed of delivery

Watch up & working, swift delivery, excellent

20.05.2025

R**I

Avoid!!!... arogant trick

These are crap batteries removed form shelves or magazines. I just received a pair (not surprised they sell two) that have only 18months validity until end... Sorry guys, it is not NEW... it is just unused!!

4.05.2026

H**H

It is ok

I am very satisfied with these batteries. They arrived on time and work perfectly for my watch. High-quality Swiss-made product at a fair price. I highly recommend them

22.04.2026

C**R

watch batteries

ordered it for my g-shock, working fine

30.08.2026

A**R

Delivery speed and good product

Batteries work well

20.09.2026

N**I

Super

Sehr gut

17.03.2026

A**R

Baja duración

Baja duraciónm

4.06.2026

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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.

€ 9.63

Duties & taxes included

In stock

Sold byAmazon GuadeloupeDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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

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Description

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Common Questions