Invicta Pro Diver 8926OB Battery? None — It's Mechanical
The Invicta Pro Diver 8926OB is powered by the natural motion of your wrist — there is no battery inside, and no battery replacement is ever needed. It runs on the Seiko NH35A caliber.
Important: ⚙️ One of the most searched watches for battery replacement — but it has NO battery. The 8926OB is fully mechanical automatic.
Why does the Invicta Pro Diver 8926OB not need a battery?
Does the Invicta Pro Diver 8926OB need a battery?
No. It is a mechanical automatic watch — the mainspring is wound by an internal rotor that swings with the motion of your wrist. There is no battery inside.
Why does my Invicta Pro Diver 8926OB stop when I don't wear it?
Automatic watches store roughly 24–48 hours of power in the mainspring. If you leave it unworn beyond that window the watch will stop. Wind the crown or wear it and it will restart immediately.
How do I restart my Invicta Pro Diver 8926OB?
Shake it gently for 20–30 seconds, or manually wind the crown 20–30 times. Then set the time.
How often should I service it?
A full service by a qualified watchmaker every 3–5 years keeps the lubricants, mainspring and gaskets in good condition. No battery is ever replaced.
How to keep the Invicta Pro Diver 8926OB running
- The Invicta Pro Diver 8926OB is a mechanical automatic watch — it has NO battery
- It is powered by the movement of your wrist (automatic winding rotor)
- The transparent case back reveals the moving rotor
- If the watch has stopped, shake it gently or wind it manually via the crown
- For quartz Invicta Pro Divers, check model 9204 instead
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Data verification
Battery information is based on manufacturer documentation where available and community-verified sources. If you notice an error or have official documentation for this model, please contact us to help improve this database.