Replica Omega Seamaster 300 50th Anniversary quality splits into three tiers. Entry replicas cost $30 to $80 and run quartz movements. Mid tier runs $120 to $250 and uses Asian automatic movements. Top tier runs $280 to $500 and copies case shape, dial text, and bezel insert with care. No replica matches the Omega 8400 Master Co-Axial movement inside the genuine watch.
omega seamaster 300 50th anniversary copy vs original
Genuine specs to compare against
The Seamaster 300 name goes back to 1957. Omega has released anniversary and tribute references that reuse the 1957 layout, including the Seamaster 300 Master Co-Axial. Numbers to hold against any replica:
- Case diameter: 41mm
- Case thickness: about 13.5mm
- Lug width: 21mm
- Water resistance: 300m on the genuine
- Crystal: box sapphire, domed
- Bezel: ceramic insert with a dive scale
- Dial: no date window, broad arrow hour hand, lollipop seconds hand
- Movement: Omega 8400 Master Co-Axial, 60 hour power reserve
Confirm each number against the exact reference. Omega used more than one Seamaster 300 case over the years, so the spec sheet matters more than the model name.
Tier 1: entry
Quartz movement. Mineral glass. Printed bezel insert. Case diameter lands at 42mm or 43mm, which is 1mm to 2mm off. A date window appears at 3 o'clock on dials that should have none. Lume fades in 20 minutes.
Omega Seamaster 300 50th Anniversary Copy vs Original: A Comprehensive Comparison
Tier 2: mid
Asian automatic movement, most often a copy of the ETA 2824 or a Seagull ST21. Sapphire crystal. Ceramic or aluminum bezel insert with the correct scale text. Case size close to 41mm. Bracelet end links fit with visible gaps. Crown threads feel rough.
Tier 3: top
Swiss ETA 2824 or a close clone. Box sapphire crystal with inner anti-reflective coating. 21mm lug width. Bezel insert font and lume pip match photos of the genuine. Dial text uses the correct font weight and spacing. Caseback engraving has depth. Bracelet taper runs 21mm to 20mm at the clasp.
Tells of a low grade replica
- Wrong case diameter
- Date window on a no-date dial
- Flat crystal instead of a dome
- Green or orange lume on a vintage-style dial
- Sharp crown guards
- Bezel that clicks 60 times instead of 120
- Laser-etched caseback text with no depth
Water resistance
Genuine rating is 300m. Replicas carry no rating you can trust. Most ship with gaskets that fail a pressure test. If you plan to swim, have a watchmaker test the case first. Most replica cases leak at the crown.
Price and what it buys
Under $100 buys a quartz watch with a wrong case. $150 to $250 buys a sapphire watch with an Asian automatic. $300 and up buys correct case geometry. Above $500 the gain per dollar drops. Spend the extra on a pressure test and a service instead.