The Vostok Amphibian 670923 is the classic Chistopol Amphibia in a compact steel case: black dial, Cyrillic Amphibia at 12, date at 3, and a bidirectional stainless-steel bezel. It is a mechanical diver with 200 metres of water resistance, a screw-down crown, and a screw-down case back. If you want a Russian automatic that still looks like a tool rather than a fashion piece, this is the 670-series reference that keeps turning up on wrists.
Why the 670923 works as a daily diver
Amphibia cases use a compression-style gasket layout that has been the factory’s diver architecture since the 1960s. The 670923 pairs that case with a black dial, lume on the hands and indexes, and a black polyurethane strap. It is not a 200 m “fashion WR” sticker: the crown screws down, the back is bolted, and the crystal is the slightly domed acrylic Amphibia glass. Wear it swimming, on a boat, or as a weekday beater. The 41 mm case (measured without the crown) and about 49 mm lug-to-lug sit smaller than many modern divers.
The movement is Vostok’s own 2416B automatic: 31 jewels, shock-protected balance, central seconds, and a date with quick-set from the crown. Fully wound it runs for about 31 hours. You can also wind it by the stem after a few days in a drawer. Factory rate is typically quoted around −20 to +60 seconds per day, which is honest mechanical diver spec, not a chronometer claim.
Who it suits
- Buyers who want a mechanical 200 m diver without a 42–44 mm Japanese sports case
- Collectors looking for a current Amphibia 670 with black dial and PU strap
- Anyone who likes a rotating steel bezel, lume, and a date window without extra complications
Specifications
- Brand: Vostok (Chistopol Watch Factory)
- Collection: Amphibian / Amphibia
- Reference: 670923 (movement/case family often listed as 2416 / 670923)
- Movement: Vostok 2416B automatic, 31 jewels, shock-protected balance
- Functions: hours, minutes, central seconds, date at 3, bidirectional rotating bezel
- Power reserve: about 31 hours when fully wound; automatic plus manual winding
- Case: polished stainless steel, Amphibia profile
- Case diameter: 41 mm (without crown)
- Lug-to-lug: about 49 mm
- Thickness: 15 mm
- Crystal: slightly curved acrylic (plastic Amphibia glass)
- Crown: screw-down at 3 o’clock
- Case back: screw-down / bolted Amphibia stainless back
- Water resistance: 200 m (20 ATM)
- Dial: black, Cyrillic Amphibia at 12, “31 камней” and “сделано в России”, green inner minute track, lume on hands and indexes
- Strap: black polyurethane, 20 mm lug width
- Origin: Russia
Case size, thickness, lug-to-lug, strap width, movement, and 200 m rating follow specialist Amphibia listings for 2416 / 670923 (including Vostok-Watches24 and Meranom factory-catalogue figures). Do not mix this reference with steel-bracelet or exhibition-back factory modifications sold under similar 670923 suffixes.
Frequently asked questions
What movement does the Vostok 670923 use?
The Vostok 2416B automatic: 31 jewels, central seconds, date, shock protection, and roughly 31 hours of power reserve. It winds from the rotor and can be wound by the crown.
What is the water resistance of the Vostok Amphibian 670923?
200 metres (20 ATM), with a screw-down crown and bolted Amphibia case back. That is swimming and recreational dive territory when the crown is fully screwed down. Pressure ratings assume gaskets in good condition.
Is the 670923 on a steel bracelet or a rubber strap?
This listing is the black polyurethane (rubber-style) 20 mm strap version. Some 670923 factory variants exist with a steel bracelet or different bezel; confirm the photos on this page, which show the black strap and steel bezel.
How big is the Vostok Amphibian 670923 on the wrist?
About 41 mm across without the crown, 15 mm thick, and roughly 49 mm lug-to-lug. It wears like a mid-size diver, not a modern 44 mm sports watch. Lug width is 20 mm if you swap the strap later.
Does the 670923 have a date?
Yes. Date window at 3 o’clock with quick-set from the crown. There is no day-of-week complication.
Where can I buy the Vostok Amphibian 670923 in Australia?
This example is in stock at Chronospride. Authentic stock, inspected before dispatch. Free shipping Australia-wide on eligible orders. Covered by Chronospride’s 12 months warranty, handled by our team. See our authenticity and warranty page.
Authentic stock, inspected before dispatch. Free shipping Australia-wide on eligible orders. Covered by Chronospride’s 12 months warranty, handled by our team. See our authenticity and warranty page.
| Brand | Vostok |
|---|---|
| Case-Size | 41mm |
| Band-Width | 20mm |
| Lug-Width | 20mm |
| Lug to lug size | 49mm |
| Case Thickness | 15mm |
| UPC | 0689336922394 |
| GTIN | 0689336922394 |
| EAN | 0689336922394 |
| MPN | 670923 |
| Gender | Men's |
| Band-Material | Rubber |
| Case-Material | Stainless Steel |
| Movement | Automatic |
| Band-Colour | Black |
