The SR621SW / 364 silver‑oxide button cell is one of the most common watch batteries used in compact quartz watches. But not all brands perform the same. In this review, we compare LiCB, Renata, and Maxell — three of the most widely available options — to help you choose the best battery for accuracy, longevity, and reliability.
⭐ Quick Verdict
If you want the best overall performance, choose Renata 364.
If you want excellent reliability at a lower price, choose Maxell 364.
If you want budget multipacks, choose LiCB SR621SW.
🔋 1. Renata 364 (SR621SW) — The Premium Swiss Choice
Renata is widely considered the gold standard for watch batteries, especially in Swiss watches.
Strengths
- Swiss‑made with extremely tight quality control
- Excellent leakage resistance
- Long, stable voltage output → better timekeeping accuracy
- Trusted by major watch brands (Swatch Group, Tissot, Omega use Renata in service centers)
Weaknesses
- Slightly more expensive than LiCB or Maxell
- Counterfeits exist — buy from reputable sellers
Best For
High‑quality watches, luxury brands, precision timepieces, long‑term reliability.
🔋 2. Maxell 364 (SR621SW) — Reliable Japanese Performance
Maxell is a Japanese brand known for consistent quality and excellent value.
Strengths
- Very stable discharge curve
- High reliability and low defect rate
- Often cheaper than Renata
- Widely available in multi‑packs
Weaknesses
- Slightly shorter lifespan compared to Renata (in real‑world use)
- Packaging varies by region
Best For
Everyday watches, mid‑range quartz watches, users who want reliability without paying Swiss prices.
🔋 3. LiCB SR621SW / 364 — Budget Multipack Option
LiCB is a value‑focused brand offering large multipacks at very low prices.
Strengths
- Extremely affordable
- Great for bulk replacement (multiple watches, clocks, small devices)
- Good performance for the price
Weaknesses
- Shorter lifespan than Renata or Maxell
- Quality consistency varies between batches
- Not recommended for high‑end watches
Best For
Cheap watches, toys, calculators, or users who need many batteries at once.
📊 Comparison Table: LiCB vs. Renata vs. Maxell (SR621SW / 364)
| Brand | Quality | Lifespan | Leakage Resistance | Price | Best For |
|---|---|---|---|---|---|
| Renata 364 | ⭐⭐⭐⭐⭐ | Longest | Excellent | Higher | Premium watches |
| Maxell 364 | ⭐⭐⭐⭐ | Long | Very Good | Mid‑range | Everyday watches |
| LiCB SR621SW | ⭐⭐⭐ | Moderate | Good | Lowest | Budget multipacks |
🧭 Which Battery Should You Choose?
Choose Renata if…
You want maximum reliability, especially for Swiss or high‑value watches.
Choose Maxell if…
You want excellent performance at a fair price.
Choose LiCB if…
You want cheap multipacks for low‑cost devices.
📝 Final Thoughts
For most users, Maxell offers the best balance of price and reliability. For premium watches, Renata is the safest choice. For bulk use, LiCB is unbeatable on price.
