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

⏳600 hrs endurance

⚡1.55V stable power

📏11.6mm compact size

€ 17.64

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Description

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

SEAMLESS REPLACEMENT - Direct swap for Rayovac RW51 with guaranteed compatibility
LONG LASTING PERFORMANCE - Up to 600 hours of dependable power in low-drain gadgets
LIFETIME LIMITED WARRANTY - Confidence backed by Energizer’s trusted warranty for peace of mind
PERFECT FIT FOR DEMANDING GEAR - Compact 11.6mm diameter and 3.6mm thickness tailored for watches, cameras, and calculators
RELIABLE SILVER OXIDE CHEMISTRY - Delivers consistent, high-energy density for your precision devices

The Energizer 387S is a premium 1.55V silver-oxide button cell battery engineered for low-drain devices like watches, cameras, and calculators. Offering a robust 60mAh capacity and approximately 600 hours of reliable use, its compact 11.6mm size ensures a perfect fit. Trusted for consistent performance and backed by a lifetime limited warranty, it’s the go-to power source for professionals who demand precision and longevity.

Specifications

ASIN	B00006G9SE
Amperage	1.5 A
Antenna Location	Watch
Battery Capacity	60 milliamp_hours
Battery Cell Composition	Silver Oxide
Battery Cell Type	Silver Oxide
Best Sellers Rank	#152,908 in Health & Household ( See Top 100 in Health & Household ) #830 in Coin & Button Cell Batteries
Brand	Energizer
Customer Reviews	4.6 out of 5 stars 436 Reviews
Global Trade Identification Number	00039800064554
Included Components	Battery
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)
Recommended Uses For Product	Watch
Reusability	Single Use
UPC	039800110916 039800064554
Unit Count	1 Count
Voltage	1.55 volts

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€ 17.64

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered 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 Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The product quality is outstanding. Exactly what I needed for my work.

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