SD-500 Automatic Divers Watch

D-500 Automatic Diver Series

Our new divers watch is ready for pre-order for Marc Marcielo. This watch is made of the best components and creates a stylish and heavy-duty watch for any avid collector or wearer.

Today you may be asking yourself, “what is the best Swiss-made divers watch?” Well, we here at Marc Marcielo know exactly what you mean. A good dive watch should have a high-quality construction and a nicely adjustable strap. It should be lightweight so you can take it on trips and outings without feeling like you are carrying a heavy weight around your wrist. It should have a date window and a screw-down crown.

Be the first to wear our new SD-500 series divers watch. It features a sleek, understated design with a water resistance of 500 meters that makes it great for everyday wear in and out of the water. The stainless steel case and strap create a minimalist look that is both classic and modern. The Swiss-made Ronda R150 movement provides precision and reliability for years of enjoyment.


Case & Strap

Water Resistance


SD-500 Series Divers Watch from Marc Marcielo


Ronda R150 “Mecano”Ronda R150 Automatic Movement

We chose this movement for its accuracy and durability. Ronda, a leader in Swiss quartz movements, introduced this movement in 2016.

R150 includes both hand-winding and bi-directional automatic winding using an unusual pawl-based reverser. It also includes a hacking seconds feature. The Nivaflex mainspring provides a 40 hours power reserve at 28,800 A/h.

Some specs are

  • Swiss Made
  • 25 Jewels
  • 28,800 vph
  • Swiss lever escapement
  • Inca bloc anti-shock system
  • Index system for fine adjustment
  • Nivaflex mainspring
  • Average rate: 12 s/d ± 12 s/d at rate CH, 6H
  • Maximum variance in all positions: 30 s/d
  • Isochronism over 24h: ±20 s/d
Water Resistance

The SD-500 is rated at 50ATM or 500 Metres or 1640 Feet. Each watch is tested under conditions that exceed 25% of the advertised depth. We ensure that every watch is tested for ingress and that it meets our high standards.

Case, Bezel & Strap

Our cases and straps are made from 316L stainless steel and are made to handle the extremes a watch can face. Our strap has a double locking clasp for security and features a screw-down crown to prevent water ingress.

Our black model is PVD plated on both case & strap.

The bezel is ceramic with 120 click rotation.

Helium Release Valve

Helium release valve

After spending an extended period of time under external pressure, helium molecules can build up inside a watch. The built-up helium, which has now pressurized the inside of the watch case, may well force the crystal from the watch.

To prevent this from happening, a helium escape valve automatically allows built-up helium molecules to escape the watch during decompression. As the watch returns to a normal pressure environment, it allows the trapped helium to escape thus reducing the risk of failure in the crystal. Because the molecules are smaller than that of water, water won't ingress through the valve.

Features & Lume

The watch features a:

  • Dial painted with raised silver framed Superluminova dot indexes at 1,2,4,5,7,8,10,11
  • Superluminova stroke indexes at 3, 6, 9
  • Superluminova triangle index at 12 Luminous hour, minute & second hand.
  • Date indicator at the 3 position
  • Screw-down crown
  • Sapphire Glass
  • Diameter  44.00mm
  • Thickness 14.00mm
  • Net weight 0.200 kg
pre-order Information

We are pleased to offer these watches on a pre-order basis. There is a limited supply of 10 per model available for pre-order. The delivery date will be in September 2021. ALL watches will only be delivered to the address used for payment and will come secure and signed-for.

All watches are shipped from our UK warehouse and include free shipping. Those orders from outside the UK may incur a duty and tax liability. This is not paid by Marc Marcielo Ltd. Please ensure you know if there will be any additional charges levied by local authorities.

If you purchase within the UK, VAT has been added and no duty or additional tax will be due.

All our invoices will reflect the amount paid. We will not reduce the value on the shipping invoice for any reason.

  • Sale! SD-500 Divers Watch from Marc Marcielo

    Swiss Made Diver Watch – Blue – SD500BE

    £694.80 GBP
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  • Sale!

    Swiss Made Diver Watch – Green – SD500GN

    £694.80 GBP
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  • Sale!

    Swiss Made Diver Watch – Silver – SD500SR

    £694.80 GBP
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  • Sale!

    Swiss Made Diver Watch – Black – SD500BK

    £694.80 GBP
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