Is this the correct battery for a Pentax Spotmatic2? Present has no marking.

Yes, the energizer 387S is the recommended replacement battery for your camera. "Users of the Spotmatic, Spotmatic II (SPII), Spotmatic IIa, SP500, and SP1000 will be able to replace their batteries with a 1.5volt Silver-Oxide battery". It a on-line order item. You can also use the 1.5v Energizer 389 and you should be able to buy the 389 at local shops.

Has anyone tried this in an asahi pentax sp500?

I use this battery in a 1970 Bulova Accutron watch but according to google you can use it in your camera as well. I copied the following from a google query: Buy Energizer 387S Low-Drain 1.55V Silver-Oxide Button Cell Battery on ... It fits my Pentax Spotmatic SP500 film camera perfectly (no O-ring required).

Would this battery work on the Bulova Perfectionist c977745 watch?

It worked on my bulova space view (internal tuning fork) watch. Not sure if this will help you, but it might

Would this battery work for a honeywell pentax sp1000?

Dont’t know.It also didn’t work in what I ordered it for but too much hassle to return it for is value

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Energizer 387S Low-Drain 1.55V Silver-Oxide Button Cell Battery

Product ID: 9442028

Details

Battery Capacity
60 Milliamp
Battery Cell Composition
Silver Oxide
Brand
Energizer
Number of Batteries
1 Product
Recommended Uses For Product
Watch

⏳600+ Hours Endurance

🔋1.55V Silver-Oxide Power

⚖️Ultra-Light 9g Design

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Description

⚡ Power your essentials with precision and endurance—never miss a moment!

TRUSTED REPLACEMENT - Direct swap for Rayovac RW51 with guaranteed compatibility
LONG LASTING PERFORMANCE - Rated for over 600 hours in low-drain gadgets—stay powered longer
LIFETIME LIMITED WARRANTY - Confidence backed by Energizer’s trusted warranty for peace of mind
PERFECT FIT FOR ESSENTIALS - Compact 11.6mm diameter fits watches, calculators, cameras seamlessly
RELIABLE SILVER OXIDE CHEMISTRY - Delivers consistent high-energy density for your precision devices

The Energizer 387S is a 1.55V silver-oxide button cell battery engineered for low-drain devices like watches, calculators, and cameras. With a compact 11.6mm diameter and 60mAh capacity, it offers reliable, long-lasting power for over 600 hours. Lightweight at just 9 grams and backed by a lifetime limited warranty, it’s the trusted replacement for Rayovac RW51, ensuring your essential gadgets stay energized and ready.

Specifications

ASIN	B00006G9SE
Amperage	1.5 Amps
Antenna Location	Watch
Battery Capacity	60 Milliamp Hours
Battery Cell Type	Silver Oxide
Best Sellers Rank	#138,937 in Health & Household ( See Top 100 in Health & Household ) #748 in Coin & Button Cell Batteries
Brand	Energizer
Built-In Media	Battery
Customer Reviews	4.5 4.5 out of 5 stars (424)
Global Trade Identification Number	00039800064554
Item Dimensions	2 x 1 x 0.1 inches
Item Weight	9.07 g
Manufacturer	Energizer
Model Number	387S
Number of Batteries	1 Product Specific batteries required. (included)
Reusability	Single Use
UPC	039800110916 039800064554
Unit Count	1 Count
Voltage	1.55 Volts

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₪49

Duties & taxes included

In stock

Sold byAmazon IsraelDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Israel.

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