The Vostok Europe Lunokhod-2 Grand Chronograph Watch 6S21-620E631B is a masterfully crafted timepiece, handmade in Lithuania. Limited to just 3000 units, each individually numbered, this watch draws inspiration from the Lunokhod-2 lunar rover, encapsulating a spirit of exploration and resilience. It is designed to withstand a variety of extreme conditions, making it an ideal companion for adventures ranging from deep-sea diving to space exploration.

Key features of this timepiece include:

1. Case: The watch is built around a robust 49mm case made of 316L stainless steel, known for its superior strength and corrosion resistance. The case is further enhanced with a striking blue PVD coating, adding a touch of style and durability. It has a significant thickness of 17.5mm, emphasizing its sturdy build.

2. Water Resistance: With a water resistance of up to 300 meters, this watch is perfectly suited for serious underwater activities, including professional diving.

3. Helium Release Valve: A notable feature for deep-sea divers, the watch includes an automatic helium release valve. This spring-loaded one-way valve activates to equalize pressure when diving at great depths, a crucial function for dives requiring the use of diving bells.

4. Crystal: The dial is protected by a 3.5mm thick mineral K1 crystal, which is hardened for extra durability and treated with an anti-reflective coating for clear visibility.

5. Illumination: The watch features Swiss-made tritium tubes, placed vertically or on the dial ring, providing exceptional and long-lasting illumination for easy readability in low-light conditions.

6. Straps: This versatile watch comes with custom leather and silicon straps, along with a blue stainless steel bracelet. These straps can be easily interchanged using a single tool provided with the watch, offering flexibility in style and usage.

7. Buckle: It is equipped with an original heavy-duty stainless steel buckle, ensuring that the watch remains secure on the wrist during any activity.

8. Packaging: The watch is housed in an original VE waterproof and shock-resistant plastic box, making it an ideal container to protect valuable items during extreme adventures.

The watch features a sandwich-style dial with the date displayed at the 6 o'clock position. It is also equipped with a unidirectional rotating bezel and a solid etched caseback, enhancing its functionality and aesthetic appeal.

Mounted on a blue stainless steel bracelet, the watch also includes additional strap options: a blue genuine leather strap and a blue silicon strap, catering to different preferences and activities.

Powering this exceptional timepiece is the Miyota 6S21 Quartz chronograph movement, renowned for its accuracy and reliability.

In summary, the Vostok Europe Lunokhod-2 Grand Chronograph Watch 6S21-620E631B is not only a remarkable instrument for timekeeping but also a symbol of human innovation and the spirit of adventure. Its combination of rugged durability, versatile functionality, and stylish design make it a highly desirable piece for watch enthusiasts and adventurers alike.