The Ultimate Teardown: VSF Omega Seamaster Diver 300M V4 (New Dandong 8800 Movement)
For a long time, the replica Omega Seamaster Diver 300M was plagued by one major compromise: the movement. Previous versions relied on a heavily modified Asian 2824 movement with a decorative glued plate. It was thick, had a loud rotor, and the date adjusted in the wrong direction.
Not anymore. VS Factory (VSF) has officially dropped the V4 version powered by the highly anticipated, true-clone Dandong 8800 movement. In this comprehensive teardown, we put the VSF V4 side-by-side with the Genuine (GEN) and the old market versions to prove why this is the only Seamaster you should ever consider.
Table of Contents
- 1. The Dandong 8800 Movement Revolution
- 2. Case Proportions & Waterproofing
- 3. Dial, Bezel & Enamel Craftsmanship
- 4. The Two-Tone Lume Test
- 5. Bracelet & Micro-Adjust Clasp
- 6. Final Verdict
1. The Dandong 8800 Movement Revolution (The Game Changer)
The most significant upgrade of the V4 lies under the caseback. VSF has abandoned the old 2824 plywood machine entirely.

The Calendar Tell is Dead: On the old 2824 movements, adjusting the date required turning the crown upwards. The new VSF Dandong 8800 adjusts downwards (counterclockwise), which is exactly how the genuine Omega caliber functions.

Real Architecture, No Fake Plates: The old 2824 used a 7-part glued decorative plate that looked sloppy under a loupe. The new VSF 8800 is an integrated, all-in-one true clone (only 3 main top parts). The gears you see are real, functioning components, not glued-on iron pieces.

Movement Thickness: By ditching the fake plates, VSF reduced the movement thickness to 4.65mm, perfectly matching the GEN. The old 2824 was a bulky 6.4mm, which forced the entire watch case to be too thick.

Power Reserve: The new Dandong 8800 delivers a highly stable 54 hours of power reserve, nearly identical to the genuine 55 hours. You can leave this watch off your wrist for the weekend, and it will still be ticking on Monday morning.
2. Case Proportions & Waterproofing
Because the movement is now the correct thickness, VSF was able to completely refine the case geometry.

Using digital calipers, the VSF measures an incredibly accurate 42.07mm in diameter and 13.85mm in thickness, visually indistinguishable from the GEN specs. The satin brushing on the mid-case and the crown knurling are meticulously finished.

VSF isn’t just about looks; it’s about engineering. The teardown reveals identical waterproof O-ring placement and inner case threading, ensuring real-world water resistance.
3. Dial, Bezel & Enamel Craftsmanship

Standard replicas use simple white paint or cheap plating for the bezel markers, which turns grey or peels over time. VSF utilizes a true enamel-filling process just like Omega, ensuring the white numerals remain brilliantly bright and scratch-resistant forever. The sapphire crystal features an excellent layer of high-transparency AR coating, minimizing glare.

Looking at the macro shots of the dial, the iconic wave pattern is sharply laser-engraved into the ceramic [ZrO2] dial. The date font is perfectly centered, and the hands are polished without any rough burrs.
4. The Two-Tone Lume Test

Omega is famous for its two-tone Super-LumiNova. VSF nails this perfectly: the minute hand and the bezel pip glow a bright green, while the hour markers and hour hand glow a vibrant blue. The application is thick, even, and lasts for hours in the dark.
5. Bracelet & Micro-Adjust Clasp

The 5-link stainless steel bracelet is notoriously difficult to replicate due to its complex finishing. VSF perfectly mirrors the alternating brushed and polished links. More importantly, they have fully replicated the push-button micro-adjust diver extension system inside the clasp, allowing for quick, tool-less resizing on the go.
6. Final Verdict: The Undisputed King of Divers
The release of the VSF V4 with the Dandong 8800 movement officially ends the debate. This is no longer just a “good replica”—it is a true 1:1 super clone inside and out. The correct calendar adjustment, the 54-hour power reserve, and the flawless enamel bezel make it a masterpiece.
Ready to upgrade your collection? We guarantee that every Seamaster 300M we ship is the latest V4 batch featuring the Dandong 8800 movement. Explore our Omega collection or message us on WhatsApp to see live QC videos today.