The Gruppo Gamma Nexus is unlike anything else in the brand’s line-up, and it is no longer in production. If you are considering the last available piece, here is what makes it different and what to check before buying.
Inspired by a depth gauge, not a dive watch
In the 1940s, frogmen performing underwater operations commonly relied on three wrist-worn instruments: a compass, a watch and a depth gauge. While most tool watches draw on the wristwatch itself, Gruppo Gamma looked to the depth gauge when it developed the Nexus in 2019. Its jumping-hour complication reinterprets the visual language of a vintage depth gauge, making it one of the most unconventional watches in the Gruppo Gamma catalogue.
The Nexus concept and renders were publicly unveiled in March 2019, with the first prototypes following in September 2019. Across the collection’s run, it was available in aged steel, Damascus steel and stainless-steel executions.
Why collectors single it out
The Nexus’s unconventional jumping-hour display and depth-gauge inspiration set it apart from the more conventional dive-watch designs elsewhere in the Gruppo Gamma range. Some collectors compare its visual impact to Swiss creations priced ten to thirty times higher, which is part of why it still draws attention now that the collection is discontinued.
Full technical specification
Specifications vary between references, so always confirm the exact configuration on the individual product page. The Nexus ND-02 Damascus Steel currently listed at Mi-Watch carries the following case and movement specification:
- Case: 44 mm diameter, 52 mm lug-to-lug, 22 mm lug width, 15.5 mm height, 110 g with strap
- Crystal: top-hat sapphire crystal with anti-reflective treatment
- Water resistance: 100 m / 330 ft
- Movement: Miyota 8215 with a customised module and rotor, 21,600 bph, 36-hour power reserve, automatic and hand-windable, stated accuracy of -20 to +40 seconds per day
- Dial: black bottom layer, gunmetal upper layer and black hour wheel, markers filled with Swiss Super-LumiNova
- Hands: gold-coloured, filled with Swiss Super-LumiNova
- Strap: tan Toscano-series leather, 125/75 mm, with end link installed
- Accessories: Gruppo Gamma multi-purpose strap-changing tool and travel pouch
Buying a discontinued Nexus: what to check
Because the Nexus is out of production, only a very small number of pieces remain in the market. Mi-Watch currently lists one Nexus ND-02 Damascus Steel, subject to live availability. Buying a discontinued reference from an authorised dealer rather than a private resale means the piece is verified authentic and still covered by manufacturer warranty support, which matters more for an unconventional, harder-to-service complication like the jumping-hour module.
Read our notice about stolen Gruppo Gamma watches before buying a Nexus, or any Gruppo Gamma watch, from an unofficial source.
Buying the Gruppo Gamma Nexus in Europe
Mi-Watch.it is an authorised European Gruppo Gamma dealer and has worked with the brand since 2015. Orders come with 24-month manufacturing-defect warranty support and tracked worldwide delivery from Europe. See our shipping information and warranty and support page for details.
Gruppo Gamma Nexus FAQ
Is the Gruppo Gamma Nexus still in production?
No. The Nexus is a discontinued collection; only a very small number of pieces remain in the market.
What is the jumping-hour complication?
Instead of a conventional hour hand, the hour is displayed in a window that jumps to the next number, styled here after a vintage depth gauge rather than a standard watch dial.
What movement powers the Nexus ND-02?
A Miyota 8215 with a customised module and rotor, running at 21,600 bph with a 36-hour power reserve.
What water resistance does the Nexus have?
100 m / 330 ft on the current ND-02 Damascus Steel reference.
Final thoughts
The Nexus is a true conversation piece rather than a conventional tool watch: an instrument-inspired display, a distinctive case, and a story that goes back to 1940s frogman equipment. With the collection discontinued and very few pieces left, buying from an authorised dealer is the safer route to a genuine, warrantied example.