For sale is an Omega Seamaster 300M Professional Diver, reference 212.30.41.20.03.001, a modern classic that pairs Omega’s dive heritage with everyday versatility. This is a New Old Stock example: the watch was purchased and dated in 2025 despite the reference being discontinued several years earlier, and it remains in excellent condition with flawless performance.
Key Features
Model: Omega Seamaster Diver 300M Professional
Reference: 212.30.41.20.03.001
Case: 41 mm stainless steel, brushed and polished
Bezel: Unidirectional blue ceramic bezel with 60‑minute dive scale
Dial: Gloss blue “flat” dial with applied indices and date at 3 o’clock
Crystal: Sapphire with anti‑reflective treatment
Bracelet: Stainless steel bracelet with diver’s extension
Movement: Omega Co‑Axial Calibre 2500 automatic, chronometer‑certified, ~48 h power reserve
Water Resistance: 300 m / 1000 ft with screw‑down crown and helium escape valve
Detailed Description
This Seamaster 300M features the sought‑after 41 mm steel case paired with a rich blue dial and matching ceramic bezel, giving it a clean, contemporary look that still feels unmistakably “Seamaster.” The polished blue dial and applied markers give more depth and refinement than earlier printed‑logo wave dials, while the sword hands and strong lume keep it highly legible day or night. At 41 mm with moderate thickness and a balanced lug‑to‑lug, it wears comfortably on a wide range of wrists.
Inside is Omega’s Co‑Axial Calibre 2500, a chronometer‑certified automatic movement derived from the ETA 2892 and upgraded with George Daniels’ Co‑Axial escapement. That means reduced friction, excellent long‑term accuracy, and extended service intervals, making it ideal for a daily‑wear dive watch. The watch is running flawlessly, exactly as you’d expect from a NOS piece that has effectively just entered service.
New Old Stock Appeal
What makes this example special is its status as New Old Stock: the watch was sold and dated in 2025, even though the reference was discontinued years earlier. You get the charm of a discontinued generation—with its flat lacquered blue dial and ceramic bezel—combined with the peace of mind of a very recent sale date and minimal actual wear. It’s an excellent option for someone who missed this reference when it was current but wants as close to a “new” example as possible.
Condition and Inclusions
The watch is in excellent condition, with no notable marks on the case, bezel, crystal, or bracelet, consistent with NOS handling only. It comes as a proper full set, including:
Why It’s a Great Buy
This 212.30.41.20.03.001 hits a sweet spot: a discontinued, collectible generation of the Seamaster Diver 300M, wearing a very modern 41 mm profile, powered by a Co‑Axial chronometer movement, and offered as NOS with a fresh 2025 card. For anyone wanting a blue Seamaster that stands slightly apart from the current wave‑dial generation, this is a standout choice ready for both desk duty and genuine diving.
For sale is an Omega Seamaster 300M Professional Diver, reference 212.30.41.20.03.001, a modern classic that pairs Omega’s dive heritage with everyday versatility. This is a New Old Stock example: the watch was purchased and dated in 2025 despite the reference being discontinued several years earlier, and it remains in excellent condition with flawless performance.
Key Features
Model: Omega Seamaster Diver 300M Professional
Reference: 212.30.41.20.03.001
Case: 41 mm stainless steel, brushed and polished
Bezel: Unidirectional blue ceramic bezel with 60‑minute dive scale
Dial: Gloss blue “flat” dial with applied indices and date at 3 o’clock
Crystal: Sapphire with anti‑reflective treatment
Bracelet: Stainless steel bracelet with diver’s extension
Movement: Omega Co‑Axial Calibre 2500 automatic, chronometer‑certified, ~48 h power reserve
Water Resistance: 300 m / 1000 ft with screw‑down crown and helium escape valve
Detailed Description
This Seamaster 300M features the sought‑after 41 mm steel case paired with a rich blue dial and matching ceramic bezel, giving it a clean, contemporary look that still feels unmistakably “Seamaster.” The polished blue dial and applied markers give more depth and refinement than earlier printed‑logo wave dials, while the sword hands and strong lume keep it highly legible day or night. At 41 mm with moderate thickness and a balanced lug‑to‑lug, it wears comfortably on a wide range of wrists.
Inside is Omega’s Co‑Axial Calibre 2500, a chronometer‑certified automatic movement derived from the ETA 2892 and upgraded with George Daniels’ Co‑Axial escapement. That means reduced friction, excellent long‑term accuracy, and extended service intervals, making it ideal for a daily‑wear dive watch. The watch is running flawlessly, exactly as you’d expect from a NOS piece that has effectively just entered service.
New Old Stock Appeal
What makes this example special is its status as New Old Stock: the watch was sold and dated in 2025, even though the reference was discontinued years earlier. You get the charm of a discontinued generation—with its flat lacquered blue dial and ceramic bezel—combined with the peace of mind of a very recent sale date and minimal actual wear. It’s an excellent option for someone who missed this reference when it was current but wants as close to a “new” example as possible.
Condition and Inclusions
The watch is in excellent condition, with no notable marks on the case, bezel, crystal, or bracelet, consistent with NOS handling only. It comes as a proper full set, including:
Why It’s a Great Buy
This 212.30.41.20.03.001 hits a sweet spot: a discontinued, collectible generation of the Seamaster Diver 300M, wearing a very modern 41 mm profile, powered by a Co‑Axial chronometer movement, and offered as NOS with a fresh 2025 card. For anyone wanting a blue Seamaster that stands slightly apart from the current wave‑dial generation, this is a standout choice ready for both desk duty and genuine diving.
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