







Nereide Ultraleggero 42 - 3921509
Ultraleggero is the most innovative watch in the Nereide series. It draws inspiration from the Vitruvian Man, symbolizing the Renaissance and the close connection between art and science. The peculiar shape of the skeletonized dial fits perfectly with the body of the movement, through an original patented system that guarantees greater lightness and less bulk.
CASE MATERIAL: 316L Stainless Steel, PVD Gunmetal
DIMENSIONS: Ø42mm, lug to lug 49mm, thickness 13.4mm
MOVEMENT: Automatic Cal. Seiko NH70A
CRYSTAL: Sapphire Glass with anti-reflective coating
LUMINOUS MATERIAL: BGW9 Super-LumiNova®
BEZEL: 316L Stainless Steel, 120 clicks
WR: 20ATM (= 200mt)
STRAP: Rubber Band, Made in Italy
All orders include free shipping. Here are the average delivery times:
- EU Countries: 1-2 business days
- United Kingdom: 2-3 business days
- USA: 2-3 business days
- Other Countries: 2-5 business days
If the watch does not meet expectations, it can be returned within 14 days for a full refund of the purchase amount. For more info, check out our Terms and Conditions.

Multilayer Dial
In order to reduce the thickness of the case, the dial is composed of three superimposed layers, the first of which completely replaces the spacer ring. This truly unique solution is protected by the filing of patent no. 102021000031718.

A Functional Skeleton Watch
Nereide Ultraleggero is a watch with a strong identity and a sporty soul. It features a refined design, enriched by a rubber strap that harmoniously follows the shape of the case. Its elasticity and flexibility offer exceptional comfort to the wrist, while guaranteeing superior resistance to abrasion and extreme temperature variations, including conditions from -30°C to +70°C.

Strong and sporty character
A technical watch with a complex design and patented, cutting-edge solutions. Its fluid case ensures exceptional comfort, even during dynamic activities. Combining advanced performance with visible mechanics, the impact-resistant PMMA dial adds a modern, functional touch.
Technical details
Our skeleton dive watch, water-resistant up to 200 meters, combines innovative design with exceptional durability. Engineered for performance, it’s the perfect companion for water sports and outdoor adventures.
Ø42 mm, lug-to-lug 49 mm, total thickness 13.4 mm
316L Stainless Steel, PVD Gunmetal
Three-Level Dial Design, featuring transparent PMMA, skeletonized surfaces, and radial satin finishing (Patent No. 102021000031718)
Sapphire with anti-reflective coating
Seiko NH70 Automatic, 3 Hands, Skeletonized
Swiss-Made BGW9 Super-LumiNova®
20 Atmospheres (200m/656ft)
Screw-Down

Nereide Ultraleggero embodies a sophisticated, technical and innovative design. The dial of the watch is harmoniously balanced following the mathematical ratio of the golden ration of Leonardo da Vinci. This gives a balanced arrangement of the elements, forming a fascinating and structured aesthetic.

The style of Nereide Ultraleggero caseback is meant to evoke the complexity behind its design. This is achieved by alternating screws and grooves as well as by combining three different finishes: radial satin finish, micro-sandblasting and polishing.
Nereide Ultraleggero embodies a sophisticated, technical and innovative design. The dial of the watch is harmoniously balanced following the mathematical ratio of the golden ration of Leonardo da Vinci. This gives a balanced arrangement of the elements, forming a fascinating and structured aesthetic.
The style of Nereide Ultraleggero caseback is meant to evoke the complexity behind its design. This is achieved by alternating screws and grooves as well as by combining three different finishes: radial satin finish, micro-sandblasting and polishing.

