| Grade |
Genuine Watch |
AAAAA Clone |
AAA Replica |
A Replica |
| Movement |
Genuine movement |
Swiss movement |
Japanese Movement |
Taiwan Movement |
| Time Accuracy |
-3/+5 sec per day COSC certified |
-5/+6 sec per day COSC certified |
-10/+10 sec per day COSC certified |
-1/+2 min per day COSC certified |
| Stainless Steel Type |
Brand-specific (e.g., 316L steel, titanium, ceramic) |
Claims “same materials” (usually 316L steel with plating) |
316L steel or alloys |
Low-grade alloys or stainless steel |
| Logo & Markings |
laser etchings |
Sapphire crystal correct date magnification |
Sapphire crystal |
Mineral Glass |
| Dial |
Genuine Watch |
Exact detail and font |
90% exact detail and font |
70% Exact detail and font |
| Waterproof |
Model-specific (e.g., 30m, 100m, 300m) |
Tested up to 300m |
Tested up to 30m |
Life waterproof |
| Life expectancy |
Lifetime |
Lifetime |
3-5 years |
1-2 years |
| Warranty |
2 Years |
Up to 5 Years |
Up to 3 Years |
Up to 1 Years |
| Band Length |
18cm |
| Case Thickness |
13.5mm |
| SKU |
21092442001003 |
| Series |
Omega Seamaster |
| Brand |
Omega |
| Gender |
Men’s |
- 43.5mm Black Ceramic Case: Monochromatic, scratch – resistant construction, featuring the Seamaster Diver 300M design.
- Grey Wave – Patterned Dial: With luminous hour markers and hands, ensuring readability in low – light conditions.
- Black Rubber Strap: Durable, comfortable texture, secured by a black ceramic tang clasp for a cohesive look.
- Sapphire Crystal: Scratch – resistant, with anti – reflective coating for clear dial visibility.
- 300M Water Resistance: Ideal for diving and water – related activities, built to withstand deep – water pressure.
The Omega Seamaster Men Automatic Black Rubber Watch O21092442001003 merges stealthy style and dive – watch performance. Its 43.5mm black ceramic case, grey wave dial, and rubber strap create a rugged, modern look. With 300M water resistance and scratch – resistant sapphire crystal, it’s ready for aquatic adventures.
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