Casio vs Seiko:Which is more popular?
In September 2026, Casio had more branded searches than Seiko among watch brands in the United States. Casio had about 796,000 branded searches, while Seiko had 368,000. Casio made up 20.8% of all watch brand searches we track, and Seiko accounted for 9.6%. When we asked ChatGPT and Google AI Overviews about watch brands, Casio and Seiko each appeared in three of the five answers. Seiko was mentioned before Casio in three out of five answers.
Who do people search for more?
Casio, about 2 searches for every 1 for Seiko
Who does AI mention more?
Both were mentioned in 3 of 5 answers.
Who does AI recommend more?
Seiko, named ahead of Casio in 3 of 5 answers
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Top watch brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Casio was mentioned in three out of five: in one of the three ChatGPT answers and in both Google AI Overviews. Seiko was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Seiko was listed before Casio in three out of five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Rolex4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Tissot4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers- Casio3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Seiko3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Citizen3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Cartier2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Omega2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
TAG Heuer2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Hamilton2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Tudor2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
See every answer about watch brands
5 answers
Asked ChatGPT
“Which watch brand should I buy?”
Asked ChatGPT
“What are the best watch brands?”
Asked ChatGPT
“What is the best watch for men under $500?”
Searched Google, AI Overview
“watches”
Searched Google, AI Overview
“mens watches”
Brands are shown in the order each answer named them. The survey took place in United States on October 26, 2026.
Is Casio or Seiko more popular in search?
This chart shows how often people search Google for Casio and Seiko by name. Each line represents a brand's share of searches for all 15 watch brands we track, month by month, from searches in United States.
Share of searches by month for Casio, Seiko. The figures are in the table below the chart.
View monthly share of searches table
| Month | Rolex | Casio | Seiko | Cartier | Citizen | Omega | Invicta | TAG Heuer | Hamilton | Tissot | Tudor | Bulova | Fossil | Timex | Breitling |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 23.7% | 18.8% | 8.7% | 8.7% | 5.8% | 5.8% | 3.9% | 4.8% | 3.2% | 2.6% | 2.6% | 3.2% | 3.2% | 2.6% | 2.6% |
| Nov 2025 | 20.3% | 22.7% | 9.1% | 7.4% | 6.1% | 5% | 3.3% | 5% | 3.3% | 3.3% | 2.7% | 3.3% | 3.3% | 2.7% | 2.2% |
| Dec 2025 | 19.8% | 24.6% | 8.9% | 7.3% | 5.9% | 4.9% | 4% | 4.9% | 2.7% | 3.3% | 2.7% | 4% | 3.3% | 2.2% | 1.8% |
| Jan 2026 | 20.6% | 25.6% | 7.5% | 7.5% | 5% | 5% | 3.4% | 5% | 3.4% | 3.4% | 2.8% | 3.4% | 2.8% | 2.3% | 2.3% |
| Feb 2026 | 19.8% | 24.6% | 7.2% | 7.2% | 5.9% | 5.9% | 4% | 4.9% | 3.2% | 3.2% | 3.2% | 3.2% | 2.7% | 2.7% | 2.2% |
| Mar 2026 | 22.2% | 23.5% | 8.1% | 8.1% | 5.4% | 4.4% | 3.6% | 4.4% | 4.4% | 3% | 3% | 3% | 2.4% | 2.4% | 2% |
| Apr 2026 | 21.9% | 20% | 8% | 8% | 5.4% | 5.4% | 3.6% | 5.4% | 3.6% | 3.6% | 4.4% | 2.9% | 2.4% | 2.9% | 2.4% |
| May 2026 | 21.2% | 19.4% | 9.5% | 7.8% | 6.4% | 6.4% | 3.5% | 5.2% | 3.5% | 4.3% | 3.5% | 2.9% | 2.3% | 2.3% | 1.9% |
| Jun 2026 | 17.8% | 18.4% | 9.7% | 7.9% | 6.5% | 6.5% | 4.4% | 5.3% | 4.4% | 3.6% | 4.4% | 3.6% | 2.9% | 2.9% | 2% |
| Jul 2026 | 19% | 18.4% | 10.4% | 8.5% | 6.9% | 5.7% | 3.8% | 4.7% | 3.8% | 3.8% | 4.7% | 3.1% | 2.6% | 2.6% | 2.1% |
| Aug 2026 | 20.9% | 20.2% | 9.3% | 7.6% | 6.2% | 6.2% | 4.2% | 4.2% | 3.4% | 3.4% | 4.2% | 2.8% | 2.3% | 2.8% | 2.3% |
| Sep 2026 | 21.5% | 20.8% | 9.6% | 7.9% | 5.2% | 5.2% | 4.3% | 4.3% | 3.5% | 3.5% | 3.5% | 2.9% | 2.9% | 2.9% | 1.9% |
How has the Casio and Seiko comparison changed over the last 12 months?
3 findings
- Casio was ahead of Seiko in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Casio’s share of searches among watch brands in the United States moved from 18.8% to 20.8%, and its estimated monthly branded searches moved from 651K to 796K.
- Across the 12 months ending September 2026, Seiko’s share of searches among watch brands in the United States moved from 8.7% to 9.6%, and its estimated monthly branded searches moved from 301K to 368K.
How did search popularity change for United States watch brands in September 2026?
2 changes
In September 2026, Casio gained share of searches among watch brands in the United States, from 20.2% to 20.8%.
Estimated monthly branded searches for Seiko in the United States rose 22.3% over 12 measured months, from 301K to 368K in September 2026.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Casio’s and Seiko’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
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