364/363 watch battery
Skip itPrices mostly outside the sweet spot ($2.87–$10.03) — this niche doesn't clear our bar today.
Conversion
Incredible23.9%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.5%return rate — above 5% kills the launch gate
Review moat
Okay2,225.7avg incumbent reviews — the moat a new listing must climb
Growth
Okay+8.2%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Avg price
Bad$5.90avg listing price — sweet spot $15–$100
Competition
Bad82%top-5 click share — a locked-up shelf
Brand share
Bad95%top-5 brand share — brand-locked demand
Market size
Bad$51K$51K/yr · 36K searches
Price range
Bad$2.87–$10.03cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, 364/363 watch battery is a $51K/yr Amazon United States market (36K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 35/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
364/363 watch battery market data
- Units sold / yr
- 8K–10K
- avg 750–1,000/product
- Revenue / yr
- $47K–$59K
- units × avg price
- Conversion rate
- 23.9%
- Avg BSR
- #242
- Page quality
- 0%
- Prime
- 90%
- Sponsored
- 50%
- Out of stock
- 0.0%
- Avg brand age
- 83 months
- Avg seller age
- 174 days
Competition & brand share
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 rising
Sellers
37
Top-5 brand share
95%
Top 20: 100%
Top-5 click share
82%
Top 20: 100%
Open market
3%
- Energizer67%
- DURNERGY11%
- DURACELL7%
- LiCB6%
- YKM4%
- PKCELL3%
- Open — no brand owns it (1 brand, 3%)
Demand & seasonality
Weekly Amazon search volume, last 100 weeks — +8.2% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top 364/363 watch battery search terms
- 364/363 watch battery19K/yr
- energizer 364/363 watch battery8K/yr
- 363/364 watch batteries5K/yr
- watch battery 364/3634K/yr
Top 364/363 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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Energizer 364-363 1.55v #364/363 Low-drain Battery (SR621SW) Pack of 5 Batteries.
Energizer$6.094.6★5,333 rev
2 X Energizer 364 363 Silver Oxide Watch Batteries SR621SW SR60
Energizer$4.964.7★417 rev
DURNERGY SR621SW Watch Battery 10 Pcs AG1 Battery Watch Batteries 364 363 Alkaline Coin Button Cell Battery LR621 Green Battery
DURNERGY$4.894.7★368 rev
Duracell 364 Silver Oxide Button Battery 1 Count Pack 364 1.5 Volt Battery Long-Lasting for Watches Medical Devices Calculators and More
DURACELL$5.114.7★5,009 rev
LiCB 20 Pack SR621SW 364 164 363 AG1 Battery 1.5V Button Cell Watch Batteries
LiCB$7.034.7★8,923 rev
Newest
by launch date
PKCELL 20 Pack SR621sw Watch Battery AG1 Battery 1.5V LR621 363 364 Watch Batteries
PKCELL$6.15818 rev
10 Pack 364 SR621SW Watch Battery 363 164 AG1 1.55V Silver Oxide Battery
Vtreneg$5.80239 rev
DURNERGY SR621SW Watch Battery 10 Pcs AG1 Battery Watch Batteries 364 363 Alkaline Coin Button Cell Battery LR621 Green Battery
DURNERGY$4.89368 rev
YKM SR621SW 364 Watch Batteries 10 Pack 1.55V Silver Oxide Button Cells
YKM$6.09463 rev
LiCB 20 Pack SR621SW 364 164 363 AG1 Battery 1.5V Button Cell Watch Batteries
LiCB$7.038,923 rev
Trending
90-day click momentumPKCELL 20 Pack SR621sw Watch Battery AG1 Battery 1.5V LR621 363 364 Watch Batteries
PKCELL$6.154.7★
2 X Energizer 364-363 1.55v #364/363 Low-drain Battery (SR621SW) Pack of 5 Batteries.
Energizer$10.034.7★
DURNERGY SR621SW Watch Battery 10 Pcs AG1 Battery Watch Batteries 364 363 Alkaline Coin Button Cell Battery LR621 Green Battery
DURNERGY$4.894.7★
2 X Energizer 364 363 Silver Oxide Watch Batteries SR621SW SR60
Energizer$4.964.7★
10 Pack 364 SR621SW Watch Battery 363 164 AG1 1.55V Silver Oxide Battery
Vtreneg$5.804.6★
What buyers say about 364/363 watch battery
What buyers praise and complain about, mined from review topics.What buyers love
“Good deal”
“Good quality batteries for a good price”
“Great quality and dependable performance”
“As advertised”
“Fits good”
“Brand new and don't expire till 2028”
“works good”
“Easy to use havent used”
“Easy to install”
“Energizer cells always meet my expectations”
What buyers complain about
“Battery dead”
“each time it lasted no more than a week”
“It is larger then the SW621”
“Bad deal as the description is a misdirect- Silver Oxide batteries have an SR designation-Compatible/Alike/Same As are not what these are”
“Not compatible”
“did not have sufficient charge”
“Cheap product”
“They were not especially fresh”
Top return reasons
Common questions
- Is 364/363 watch battery profitable to sell on Amazon United States?
- The niche generates $51K/yr across 10 tracked products. 90-day search growth is +8.2%. Flapen's verdict: Skip it (35/100).
- How competitive is the 364/363 watch battery niche?
- 7 brands and 37 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 95% of demand.
- What do buyers complain about in 364/363 watch battery?
- Top complaints mined from reviews: Battery Life, Durability, Size-Overall. The return rate is 0.5%.
- When does demand for 364/363 watch battery peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the 364/363 watch battery niche?
- Listings span $2.87–$10.03; the average listing price is $5.90 (sweet spot $15–$100). The average incumbent carries 2,226 reviews — the moat a new listing must climb.