2025 Omega Seamaster Diver 300M Chronograph Complete Set

Omega Seamaster Diver 300M Chronograph 210.32.44.51.01.001


Video footage available upon request. Open to offers. Bracelet sizing service available.


Model Background


The Omega Seamaster Diver 300M Chronograph is the big brother of one of the most iconic dive watches ever made — and it earns that distinction mechanically, not just by adding millimeters. Where the standard 42mm Diver 300M runs the Caliber 8800, the 44mm chronograph steps up to the Caliber 9900 — Omega's flagship in-house chronograph movement with column wheel, vertical clutch, twin barrels in series, and METAS Master Chronometer certification. It also carries an independently adjustable hour hand for quick time zone changes, making it a genuine travel chronograph on top of being a 300-meter dive watch. The case is full stainless steel with polished black ceramic pushers and a polished black ceramic bezel with a white enamel diving scale — the ceramic elements aren't decorative, they're functional scratch resistance where the watch needs it most. The dial is black ceramic with Omega's signature laser-engraved wave pattern in positive relief, rhodium-plated hands and indices filled with white Super-LumiNova, and a conical helium escape valve at 10 o'clock for saturation diving capability. At 44mm and 17.2mm thick, this is a watch that commands presence on the wrist, and the 9900 visible through the wave-edged sapphire caseback — rhodium plated with Geneva waves in arabesque — backs up every millimeter of it with genuine horological substance.


Specifications


Model: Omega Seamaster Diver 300M Co-Axial Master Chronometer Chronograph 44mm
Reference: 210.32.44.51.01.001
Caliber: Omega 9900 — 54 jewels, 28,800 vph (4 Hz), METAS Master Chronometer certified, column wheel chronograph with vertical clutch and Co-Axial escapement, Si14 silicon balance spring, twin barrels in series, anti-magnetic to 15,000 gauss
Case Material: Stainless steel
Case Diameter: 44mm
Case Thickness: 17.2mm
Bezel: Unidirectional rotating, polished black ceramic with white enamel diving scale
Crown: Screw-down, stainless steel
Pushers: Polished black ceramic
Crystal: Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides
Caseback: Transparent sapphire crystal with wave-edged design
Helium Escape Valve: Conical design at 10 o'clock
Dial: Black ceramic with laser-engraved wave pattern, rhodium-plated hands and applied indices with white Super-LumiNova, rhodium-plated subdial hands, date at 6 o'clock
Strap: Black rubber
Clasp: Pin buckle
Movement: Automatic self-winding, rhodium plated with Geneva waves in arabesque
Power Reserve: 60 hours
Water Resistance: 300 meters (30 bar)
Functions: Hours, minutes, small seconds, date, chronograph (central elapsed seconds, 60-minute recorder, 12-hour recorder), independently adjustable hour hand


Condition Report


Case: 10/10
Bezel: 10/10
Crystal: 10/10
Dial/Hands: 10/10
Strap: 10/10
Clasp/Buckle: 10/10
Caseback: 10/10
Polishing Status: Unpolished
Photos taken on strap at standard length, fitting approximately 16–20cm (6.3–7.9 inch) wrists.


Delivery Contents


Complete set — box, warranty card, instruction manual, pictogram card
Please refer to photos for full contents.


Service & Authenticity


The watch is running at 326 degrees of amplitude on the timegrapher. No service history on record. The original Omega 5-year international warranty is active (card dated 01/29/2025), expiring January 2030.


Shipping & Legal


Ships from: Huntsville, AL
Shipping: Fully insured overnight with tracking provided
Shipping within CONUS only
Buyers are responsible for any applicable taxes and duties
Watch is sold in accordance with United States laws and regulations


Closing


All watches are inspected by our watchmakers for condition, authenticity, and functionality before sale. Feel free to reach out via messenger with any questions.