Fisher Space Pen Cap-O-Matic with brass cap and blue barrel, model 775G-BL, in a gift box

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Fisher Space Pen Cap-O-Matic 775G-BL – a pen for all conditions

The Fisher Space Pen Cap-O-Matic is a practical and durable pen with a brass cap and a blue plastic barrel. Its one-handed activation makes it convenient for people who have high standards for their writing instruments.

It is suitable for office workers, construction workers, doctors, military personnel, firefighters, and anyone looking for reliability in their daily lives.

Space-Proven Technology

The pen works reliably at extreme temperatures ranging from -34°C to +120°C, underwater, in zero gravity, and at any angle. This technology was used by NASA astronauts during the Apollo program.

The ink is thixotropic—it is solid under normal conditions and liquefies only when writing. The pen does not leak or skip.

Design and Materials

Brass and steel housing with a blue plastic body
Tungsten carbide tip
Fisher SPR4 Refill – Black, Medium Thickness
Compatible with SPR Cartridge Series refills
Clip for attaching to a pocket or backpack
Compact size—easy to carry in a wallet or organizer

It lasts up to 3 times longer

The refill contains a pressurized nitrogen gas cartridge. A small metal cylinder presses against the hermetically sealed ink, ensuring continuous writing in any position.

It lasts up to three times longer than standard ink. It doesn't run in the summer or freeze in the winter.

The perfect gift for men and women

The pen comes in a gift box and is an excellent choice for teachers, doctors, lawyers, military personnel, high school seniors, and business professionals. 🎁

Every Fisher Space Pen is hand-tested and comes with a lifetime warranty against manufacturing defects.

A Brief History of the Fisher Space Pen

During NASA's early missions, astronauts used pencils. Paul S. Fisher developed a pressurized ink-filled pen without funding from NASA; the company invested about $1 million of its own funds.

After rigorous testing, NASA equipped the Apollo program astronauts with these pens in 1967. About 400 pens were purchased at a price of $6 each. In February 1969, the Soviet Union also purchased 100 pens and 1,000 refills for the Soyuz missions.

Specifications	Value
Brand	Fisher Space Pen
Model	Cap-O-Matic 775G-BL
Type	One-handed ballpoint pen
Length	13.7 cm
Housing	Brass cap, blue plastic body
Mounting Bracket	Clip
Nozzle Material	Tungsten carbide
Magazine	Fisher SPR4 – black, medium thickness
Compatible Refills	SPR Cartridge Series
Temperature range	-34°C to +120°C
Warranty	Lifetime Warranty Against Manufacturing Defects
Contents of the Set	Pen and Gift Box

Frequently Asked Questions

Can the Fisher Space Pen Cap-O-Matic 775G-BL write underwater?

Yes, the Fisher Space Pen Cap-O-Matic 775G-BL can write underwater. The pen contains a pressurized nitrogen gas cartridge, and the ink is hermetically sealed. This allows for writing in zero gravity, underwater, and at any angle. The technology has been tested and approved for use by NASA astronauts.

At what temperatures does the Fisher Space Pen work?

The Fisher Space Pen Cap-O-Matic 775G-BL works reliably at temperatures ranging from -34°C to +120°C. The ink does not freeze in the cold or run in the heat. This makes it suitable for outdoor use in the winter, in a car, or in a demanding work environment.

What type of refill does the Fisher Space Pen Cap-O-Matic 775G-BL use?

The pen comes with a black Fisher SPR4 refill and a medium line width. It is compatible with refills from the SPR Cartridge series. The refill lasts up to three times longer than standard inks, making it a particularly economical choice.

What is the warranty on the Fisher Space Pen?

Every Fisher Space Pen is precision-assembled, hand-tested, and comes with a lifetime warranty against all manufacturing defects. This reflects the manufacturer’s confidence in the quality of its products. In the event of a manufacturing defect, the pen will be replaced or repaired.

Is the Fisher Space Pen Cap-O-Matic 775G-BL a good gift?

Yes, this pen is an excellent gift for men and women in various professions. It comes in a gift box and is suitable for doctors, lawyers, military personnel, teachers, high school seniors, and business professionals. It combines practicality, durability, and an interesting story, making it a great conversation starter. You can find it at an affordable price on Dulotec.COM.

What materials is the Fisher Space Pen Cap-O-Matic 775G-BL made of?

The pen has a brass cap and a blue plastic barrel. It is constructed of brass and steel, and the refill tip is made of tungsten carbide—a material known for its high hardness and durability. The clip allows for easy attachment to a pocket, backpack, or organizer.

How does the thixotropic ink in the Fisher Space Pen work?

Thixotropic ink is in a solid state when at rest and liquefies only when writing. This prevents leakage and interruptions in writing. The cartridge is hermetically sealed and powered by a pressurized nitrogen gas cartridge, which allows for writing in any position—even with the pen upside down.