Description
Vostok Amphibia 420831: Classic 39mm Russian Automatic Diver
The Vostok Amphibia 420831 is a compact and versatile mechanical dive watch powered by the in-house 2416B automatic movement. Built in Russia and rated to 200 meters, this model combines traditional Amphibia engineering with a clean black dial and full stainless steel bracelet.
With its balanced 39 mm case and classic round profile, the 420831 is ideal for enthusiasts who prefer traditional diver proportions.
In-House Automatic Movement – Vostok 2416B
Inside the watch beats the reliable Vostok 2416B mechanical movement, offering:
- 31 ruby jewels
- Self-winding automatic rotor
- Central second hand
- Date calendar function
- Shock-resistant construction
The 2416B is known for durability, simplicity, and long service life — a signature of Russian mechanical watchmaking.
True 200m Diver Construction
The Amphibia line is engineered for genuine underwater performance.
- Water resistance: 200 meters (20 ATM)
- Rotating diver bezel
- Solid stainless steel case
- Screw-down case back
- Scratch-resistant mineral crystal
Suitable for swimming, snorkeling, and recreational diving.
420 Case – Compact & Wearable
The 420 case is one of the most wearable Amphibia designs.
- Case size: 39 mm width / 46 mm lug-to-lug
- Thickness: 15 mm
- Shape: Round
- Material: Stainless steel
Its moderate dimensions make it comfortable for daily wear while maintaining the robust character of a true dive watch.
Black Dial with Luminous Hands & Indexes
The matte black dial ensures excellent contrast and legibility.
- Analog 12-hour display
- Date window
- Luminous hands and hour markers
- Rotating bezel for timing
The luminous elements improve visibility in low-light conditions.
Stainless Steel Bracelet – 18mm Width
The watch is fitted with a stainless steel bracelet (18 mm width), enhancing durability and giving the watch a classic diver appearance. The standard lug width also allows easy strap customization if desired.
