Is this battery fit seiko model 5m42 og99

The only way to find out is to remove the back of the watch. I thought I had the right one. When I removed the back I found it was the wrong one. I had to order another with the number off the capacitor. This is for some Seiko watches. But to get the right one remove the back first and check the number. I have this capacitor which is of no use to me. When you have the back off the watch if it matches with the one you have it should be okay Michael.

Is this capacitor self charging?

The original Capacitor that came with my watch held charge for two weeks or longer when fully charged. The replacement Capacitor only holds charge for two or three days when fully charged. So I'm disappointed with the length of time of charge.

The correct part number for a 5M54 is 304324T I do not know if the one shown (30235MY) is a suitable substitute but I doubt it due to varying thickness of capacitors

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🔧 Power Your Passion with Seiko Precision!

🔋 LITHIUM POWER - Enjoy the longevity of lithium metal technology for extended performance.
📏 COMPACT DESIGN - Ultra-slim dimensions ensure it fits in tight spaces effortlessly.
🌍 TRUSTED QUALITY - Manufactured by Seiko, a name synonymous with precision and reliability.
⚙️ SEAMLESS INTEGRATION - Designed for easy through-hole mounting, perfect for your tech needs.
🔋 POWER UP YOUR PROJECTS - Experience reliable energy with the MT920 battery size.

The Seiko Original SEIKO Capacitor 3023.5MY is a high-quality lithium metal battery designed for seamless integration in various electronic devices. Weighing just 10 grams and featuring compact dimensions of 0.95 x 0.95 x 0.2 cm, this capacitor is perfect for projects requiring reliable power in a small footprint. With a mounting type of through-hole, it ensures easy installation and compatibility with multiple movements.

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Mounting type	Through-Hole Mount
Manufacturer	Seiko
Part number	3023 5MY
Item Weight	10 g
Product Dimensions	0.95 x 0.95 x 0.2 cm; 10 g
Batteries	1 Lithium Metal batteries required.
Item model number	3023-5MY
Item Package Quantity	1
Display style	None
Special Features	none
Batteries included?	No
Batteries Required?	No
Battery Cell Type	Lithium Metal

SeikoOriginal SEIKO Capacitor 3023.5MY

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