




Nereide GMT - 3521502C
Designed for those who travel the world with a pioneering spirit, our GMT watch perfectly embodies the sophistication of adventure. Drawing inspiration from the Nereide submarine, it blends refined design with the benefit of dual-time functionality. A true ally for modern globetrotters, it captures the essence of elegance in motion.
CASE MATERIAL: 316L Stainless Steel
DIMENSIONS: Ø39mm, lug to lug 45.5mm
MOVEMENT: Automatic Cal. Seiko NH34A GMT
FUNCTIONS: GMT, date
CRYSTAL: Sapphire Glass with anti-reflective coating
LUMINOUS MATERIAL: BGW9 Super-LumiNova®
BEZEL: BK7 Crystal, 120 clicks
WR: 20ATM (= 200mt)
BRACELET: Canova
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.


GMT is the acronym for Greenwich Mean Time, which is the local time of the zero meridian of the homonymous London district. The GMT module consists of an additional hand, with an arrow-shaped tip, which completes one revolution every 24 hours. This allows you to keep track of a time zone other than the local time, already marked by the hour hand (which completes a cycle in 12 hours).

The finely engraved caseback celebrates the adoption (for the first time in 1884) of the 24 time zone system as a global reference time system based on Greenwich Mean Time. Around the representation of the terrestrial globe, the major cities of the world are shown next to their respective time zones. This way, you can set the time zone in the traditional way without needing your smartphone.
GMT is the acronym for Greenwich Mean Time, which is the local time of the zero meridian of the homonymous London district. The GMT module consists of an additional hand, with an arrow-shaped tip, which completes one revolution every 24 hours. This allows you to keep track of a time zone other than the local time, already marked by the hour hand (which completes a cycle in 12 hours).
The finely engraved caseback celebrates the adoption (for the first time in 1884) of the 24 time zone system as a global reference time system based on Greenwich Mean Time. Around the representation of the terrestrial globe, the major cities of the world are shown next to their respective time zones. This way, you can set the time zone in the traditional way without needing your smartphone.


Technical details
Our dive watch, water-resistant to a depth of 200 meters, takes its name from the Nereide submarine, a marvel of Venetian naval technology. This timepiece is engineered to endure strong stresses, making it particularly well-suited for water sports enthusiasts.
Ø39 mm, lug to lug 45.5 mm, total thickness 13.4 mm
Automatic Cal. Seiko NH34A GMT
316L Stainless Steel
BK7 Crystal, Polished and Durable with High Optical Clarity and Low Dispersion (Abbe ~60)
Brass with Sunray Finish
Sapphire with anti-reflective coating
Swiss-Made BGW9 Super-LumiNova®
20 Atmospheres (200m/656ft)
Screw-Down

A new GMT caliber
The Seiko NH34A is a groundbreaking GMT caliber, offering affordability without compromising on quality. Produced by Seiko Instruments Inc., one of the world's most renowned automatic movement manufacturers, it features 24 jewels, a vibration rate of 21,600 bph, and a 41-hour power reserve. This movement includes an independent GMT hand, bi-directional automatic winding, and supports both manual winding and hacking functions, making it a versatile and reliable choice for GMT watches.

Engineered for Brilliance
The bezel insert is made of BK7 optical crystal and adopts a particular mirror finish in the lower half, a unique feature of the GMT collection. This material has exceptional physical properties. It is lead free, lighter and is endowed with a better quality than other glass crystals. Its properties of low dispersion (with Abbe numbers around 60) and low refraction (≈1.52), combined with high clarity, make it perfect for creating high-precision and durable glass objects.