The Delma Quattro 500M is far more than just a professional dive watch – it is a precision instrument designed for serious saturation divers and a coveted collector’s piece for watch enthusiasts. Limited to only 999 pieces worldwide, it combines technical innovation, rugged reliability, and a distinctive design rooted in the original model from the 1980s.
This unique symmetrical stainless steel case was engineered with a strong focus on legibility and protection. The screw-down crown is cleverly recessed for impact protection, while the integrated helium escape valve ensures reliability at extreme depths. The robust unidirectional bezel features six bold notches, offering excellent grip even with diving gloves – a must for serious underwater operations.
Delma’s patented Rapid Bracelet Exchange System allows the watch to be seamlessly converted into three configurations:
Stainless steel bracelet
Durable rubber strap
Mountable decompression plate
The system is based on a bayonet-lock mechanism, inspired by camera lenses, enabling quick and secure changes without any tools.
Swiss automatic movement Sellita SW200-1, visible through a transparent sapphire case back
Water-resistant to 500 meters / 1650 feet (50 ATM)
Integrated helium escape valve
Symmetrical stainless steel case, 44 mm diameter
Scratch-resistant sapphire crystal with anti-reflective coating
Super-LumiNova C5 on hands and markers for outstanding readability in the dark
Set includes:
Stainless steel bracelet with folding clasp and push-button release
Black rubber strap with stainless steel pin buckle
Decompression plate for secure mounting
Elegant blue leather travel case & presentation box
The original Delma Quattro debuted in the early 1980s with a quartz movement and quickly gained popularity, especially among divers in the United States. Over 40 years later, the model returns – fully reengineered with modern Swiss technology and timeless design cues from the original.
Each timepiece is individually numbered and comes with a certificate of authenticity – making the Delma Quattro a rare opportunity to own a piece of Swiss diving watch history.
Availability Notice:
As the Delma Quattro 500M is a strictly limited edition of only 999 pieces worldwide, availability is checked individually before dispatch. Please note that shipping may be slightly delayed depending on stock status. We will inform you immediately after your order.
Shipping
Shipping takes place from Germany. Free shipping inside of Germany. Every shipment usually takes place within 24 hours and is fully insured.
The following fees apply to all shipments within and outside the EU.
Right of withdrawal
You can easily return any item to us within 14 days of receipt (return shipping fee not included). However, the product must remain in its original, unused condition and in its original packaging.
For more information, see our returns policy .
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