Halcyon Master SPG 63 mm BAR Scuba Pressure Gauge with Swivel

Halcyon Master SPG 63 mm – Premium Scuba Pressure Gauge for Recreational and Technical Diving

The Halcyon Master SPG 63 mm BAR represents the latest evolution of Halcyon's analog pressure gauges, developed to provide recreational and technical divers with a highly reliable, extremely accurate and exceptionally easy-to-read instrument.

This new generation introduces an entirely redesigned dial featuring the new Halcyon logo, a dedicated BAR-only scale for the European market and an even cleaner layout that allows divers to check cylinder pressure at a glance throughout every dive.

Every component has been engineered to maximise durability, precision and reliability, maintaining the exceptional quality standards that have made Halcyon one of the world's leading brands for technical diving equipment.

Analog Pressure Gauge or Wireless Transmitter?

Wireless air integration transmitters have become increasingly popular among scuba divers. Nevertheless, a traditional analog pressure gauge (SPG) continues to be the preferred choice for many recreational, technical and professional divers thanks to its simplicity, reliability and independence from electronic devices.

An analog SPG requires no batteries, no pairing procedures and no wireless communication with a dive computer. It continuously provides an immediate and accurate reading of cylinder pressure regardless of electronic equipment.

For this reason, many technical divers continue using an analog pressure gauge either as their primary pressure monitoring instrument or as an independent backup even when diving with wireless transmitters.

The Halcyon Master SPG 63 mm remains the perfect choice for divers seeking a dependable, highly readable analog pressure gauge that performs flawlessly in every environment.

Outstanding readability underwater

One of the strongest advantages of the new Master SPG is its exceptional readability.

The large 63 mm diameter allows pressure values to be read instantly, even in reduced visibility, deep dives or while wearing thick neoprene or dry gloves.

The dedicated BAR-only dial removes unnecessary information, providing a cleaner layout and allowing divers to focus immediately on the remaining cylinder pressure.

• Large 63 mm dial
• BAR-only display
• High-contrast graphics
• Red reserve zone indicator
• Excellent readability in all diving conditions

Chrome-plated brass body and tempered glass lens

The Master SPG features a heavy-duty chrome-plated brass housing, chosen for its outstanding corrosion resistance and mechanical strength.

The front lens is manufactured from tempered glass, offering superior scratch resistance and long-lasting optical clarity compared to traditional plastic lenses.

This combination results in an extremely durable pressure gauge designed to withstand years of recreational and technical diving.

Integrated swivel included

The Halcyon Master SPG comes supplied with an integrated swivel as standard.

The swivel allows the gauge to rotate naturally with the diver's movements, reducing stress on the high-pressure hose while making the instrument easier to read in every position.

• Reduced HP hose stress
• Improved hose longevity
• More natural gauge positioning
• Greater comfort during the dive

Why Choose a BAR-Only Pressure Gauge?

The new Halcyon Master SPG features a dedicated BAR-only display, replacing the traditional dual BAR/PSI scale found on previous models. Rather than being a limitation, this design significantly improves readability, especially for divers using the metric system.

By removing the PSI scale, the dial becomes cleaner and easier to read. Larger numbers, improved contrast and a simplified layout allow divers to check cylinder pressure instantly, even during deep dives, in low visibility or while wearing thick gloves.

A BAR-only layout also reduces visual clutter and eliminates the possibility of confusing the two pressure scales, making pressure monitoring faster and more intuitive throughout the dive.

• Larger, easier-to-read numbers.
• Cleaner and more intuitive dial layout.
• Faster pressure checks.
• No overlap between BAR and PSI scales.
• Optimised for European diving standards.

For these reasons, the new Master SPG represents the natural evolution of the previous Dual Scale version, maintaining Halcyon's legendary reliability while offering an even clearer and more user-friendly reading experience.

Made in Italy – Individually tested in the USA

Every Halcyon Master SPG is manufactured in Italy using premium-quality materials and strict production standards.

Each individual pressure gauge is then quality-controlled and tested in the United States according to Halcyon's demanding specifications before reaching the final customer.

This dual quality process guarantees exceptional precision, reliability and consistency for every instrument.

Master SPG or Stage SPG? Which Halcyon Pressure Gauge Should You Choose?

Halcyon offers two analog pressure gauges designed for different diving applications.

The Master SPG 63 mm is the ideal primary pressure gauge for single-cylinder, twinset and CCR configurations, while the Stage SPG has been specifically developed for stage, decompression and sidemount cylinders, where compact dimensions and reduced weight are essential.

If you are looking for maximum readability for your primary scuba cylinder, the Master SPG 63 mm is the perfect choice. For stage or decompression cylinders where compactness is a priority, discover the new Halcyon Stage SPG.

Compatible with Standard High Pressure Hoses

The Halcyon Master SPG is fully compatible with all standard high-pressure (HP) hoses used on scuba regulators.

For maximum reliability and a complete Halcyon configuration, we recommend pairing it with the Halcyon High Pressure Hose, designed to provide excellent flexibility, durability and long service life.

You can also explore our complete selection of HP and LP scuba hoses.

Build Your Complete Halcyon Regulator Configuration

The Master SPG integrates perfectly with Halcyon's complete regulator range, making it suitable for recreational, technical, sidemount and CCR diving configurations.

Complete your setup with:

• Halcyon H-75P First Stage
• Halcyon H-50D First Stage
• Halcyon Halo Second Stage
• Halcyon H-75P Doubles Regulator Package
• Scuba Cylinders
• Scuba Pressure Gauges

Protect Your Pressure Gauge

The Halcyon Master SPG is supplied without a protective boot, allowing divers to customise their preferred configuration.

For additional protection against impacts and scratches during transport or demanding technical dives, we recommend the Protective SPG Boot for 45, 52 and 63 mm Gauges.

Technical Specifications

Frequently Asked Questions

Why choose a 63 mm scuba pressure gauge?

The large 63 mm dial provides excellent readability thanks to its larger numbers and high-contrast graphics, allowing divers to check cylinder pressure quickly even in low visibility, deep dives or while wearing thick gloves.

Why does the new Halcyon Master SPG feature a BAR-only scale?

Halcyon introduced a dedicated BAR-only display to provide a cleaner and easier-to-read dial. By removing the PSI scale, the gauge offers larger numbers, improved readability and faster pressure checks. This configuration is particularly appreciated by European and technical divers.

Is the swivel included?

Yes. Every Halcyon Master SPG is supplied with a swivel already installed. It allows the gauge to rotate naturally, reducing stress on the HP hose while improving comfort, ergonomics and hose longevity.

Is it compatible with any HP hose?

Yes. The Master SPG is compatible with all standard scuba diving high-pressure hoses. For a complete Halcyon configuration, we recommend pairing it with a Halcyon HP hose.

Is the protective boot included?

No. The pressure gauge is supplied without a protective boot, allowing divers to customise their preferred configuration. A compatible protective boot is available separately.

Which diving configurations is the Master SPG recommended for?

The Halcyon Master SPG 63 mm is designed as the primary pressure gauge for recreational diving, single-cylinder, twinset, sidemount and CCR configurations. Its large dial makes pressure monitoring quick and effortless in every diving environment.

What is the difference between the Halcyon Master SPG and the Stage SPG?

The Master SPG features a large 63 mm dial designed for maximum readability as a primary pressure gauge. The Stage SPG is smaller and lighter, making it the ideal choice for stage, decompression and sidemount cylinders where compact size is a priority.