377/376 watch battery
Skip itPrices mostly outside the sweet spot ($4.03–$10.00) — this niche doesn't clear our bar today.
Conversion
Incredible29.4%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Market size
Okay$132K$132K/yr · 80K searches
Growth
Okay+3.8%90-day search growth — must beat 0% to launch
Review moat
Bad12,137.56avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Avg price
Bad$5.66avg listing price — sweet spot $15–$100
Brand share
Bad94%top-5 brand share — brand-locked demand
Competition
Bad86%top-5 click share — a locked-up shelf
Price range
Bad$4.03–$10.00cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 377/376 watch battery is a $132K/yr Amazon United States market (80K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 36/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
377/376 watch battery market data
- Units sold / yr
- 20K–25K
- avg 1,500–2,000/product
- Revenue / yr
- $113K–$142K
- units × avg price
- Conversion rate
- 29.4%
- Avg BSR
- #128
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 78%
- Out of stock
- 0.6%
- Avg brand age
- 87 months
- Avg seller age
- 176 days
Competition & brand share
The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 falling
Sellers
51
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
86%
Top 20: 100%
Open market
3%
- DURACELL45%
- Energizer28%
- Fuspower13%
- DURNERGY5%
- Amazon Basics4%
- CPANCELL3%
- Open — no brand owns it (1 brand, 3%)
Demand & seasonality
Weekly Amazon search volume, last 100 weeks — +3.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top 377/376 watch battery search terms
- 377/376 watch battery31K/yr
- 376/377 watch battery13K/yr
- energizer 377/376 watch battery10K/yr
- battery 377/3765K/yr
- watch battery 377/3764K/yr
- 376 watch battery4K/yr
- duracell 376/377 watch battery3K/yr
- watch batteries 377/3763K/yr
- v376/v377 watch battery3K/yr
- 377/376 battery3K/yr
Top 377/376 watch battery products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Duracell 377/376 Silver Oxide Button Batteries 2 Count (Pack of 1) Battery with Long-Lasting Power for Watches Calculators and More
DURACELL$5.264.7★10,710 rev
Energizer 377/376 Watch Batteries (Pack of 5)
Energizer$6.554.7★12,138 rev
SR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))
Fuspower$5.504.7★1,079 rev
Energizer 377/376 Silver Oxide 10 Batteries
Energizer$10.004.7★9,522 rev
Duracell 376/377 Silver Oxide Button Battery 1 Count Pack 376/377 1.5 Volt Battery Long-Lasting for Watches Medical Devices Calculators and More
DURACELL$4.224.7★2,775 rev
Newest
by launch dateSR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))
Fuspower$5.501,079 rev
DURNERGY SR626SW Watch Battery 10 Pack AG4 Alkaline Button Cell Battery 377/376 Watch Batteries 1.5V LR626 Batteries 377A
DURNERGY$4.83787 rev
CPANCELL SR626SW Watch Battery 376 377 LR626 AG4 1.5V Watch Battery (10 Count)
CPANCELL$4.03415 rev
Amazon Basics 6-Pack LR44 Alkaline Button Cell Replacement Battery 1.5 Volt Long Lasting Power Mercury-Free
Amazon Basics$5.5069,218 rev
LOOPACELL 377/376 / SR626W / SR626SW / Silver Oxide Watch Batteries (Pack of 5) - 1.55V Long Lasting Coin Cell Battery for Watches Toys Decorations Wristwatches Remote Control Mini Radio
LOOPACELL$5.072,594 rev
Trending
90-day click momentumSR626SW Watch Batteries 377 376 LR626 Battery AG4 1.5v Alkaline Coin Cells (10 Count (Pack of 1))
Fuspower$5.504.7★
Amazon Basics 6-Pack LR44 Alkaline Button Cell Replacement Battery 1.5 Volt Long Lasting Power Mercury-Free
Amazon Basics$5.504.7★
DURNERGY SR626SW Watch Battery 10 Pack AG4 Alkaline Button Cell Battery 377/376 Watch Batteries 1.5V LR626 Batteries 377A
DURNERGY$4.834.7★
Duracell 377/376 Silver Oxide Button Batteries 2 Count (Pack of 1) Battery with Long-Lasting Power for Watches Calculators and More
DURACELL$5.264.7★
Energizer 377/376 Silver Oxide 10 Batteries
Energizer$10.004.7★
What buyers say about 377/376 watch battery
What buyers praise and complain about, mined from review topics.What buyers love
“Great value”
“Long battery life”
“As good as popular brands”
“As Described”
“In this case they were a perfect fit”
“Gets the job done”
“Works well for watch”
“Handy”
“easy to install”
“At least an Energizer Bunny will work, no problem”
What buyers complain about
“Bad Batteries”
“thus do not work in some items”
“thus won't fit”
“Cheap”
“died very quickly”
“These batteries are not even the same thickness as my old batteries”
“Not sure if they are just as good as the name brand or not”
“Next to impossible to use”
“Corroded in the package”
“Did not work with what I put it in”
Top return reasons
Common questions
- Is 377/376 watch battery profitable to sell on Amazon United States?
- The niche generates $132K/yr across 9 tracked products. 90-day search growth is +3.8%. Flapen's verdict: Skip it (36/100).
- How competitive is the 377/376 watch battery niche?
- 7 brands and 51 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in 377/376 watch battery?
- Top complaints mined from reviews: Battery Life, Functionality-Overall, Size-Overall. The return rate is 0.3%.
- When does demand for 377/376 watch battery peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the 377/376 watch battery niche?
- Listings span $4.03–$10.00; the average listing price is $5.66 (sweet spot $15–$100). The average incumbent carries 12,138 reviews — the moat a new listing must climb.