Character Price Index
Sentinels Comics
Key issues, first appearances, and market estimates for 1 tracked comic.
Guide data reviewed July 2026. See our editorial policy and valuation disclaimer.
Tracked Issues
1
Highest Value
$3.2K
Average Value
$3.2K
First Appearance
1965
🌟 Definitive First Appearance
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X-Men #14 (1965)
Sentinels debuted in this historic issue published by Marvel. Estimated market value ranges from $250 up to $15.0K.
🔑 Key Issues
All Tracked Appearances
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Frequently Asked Questions
What is the most valuable Sentinels comic book?
The top-valued comic issue featuring Sentinels in our database is X-Men #14 (1965), estimated at $3.2K depending on physical condition.
When did Sentinels make their first appearance?
Sentinels debuted in X-Men #14 in 1965, published by Marvel.