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OMEGA | Seamaster Professional Diver 300M Co-Axial Master Chronometer | Ref. 210.30.42.20.06.001 (21030422006001) - Full Set - Service 2026

Brand: Omega

4.400,00 €
Verfügbar
Brand Omega
Model Seamaster Professional Diver 300M Co-Axial Master Chronometer
Reference 210.30.42.20.06.001
Condition worn | barely visible signs of wear
Date of first sale 2023
Caliber Omega Caliber 8800
Material Steel
Dial Gray
Diameter 42 mm
Scope of delivery Watch with original box and original papers

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Concept & History

Since 1993, the Diver 300M series has been the backbone of OMEGA’s professional diving watches and was originally associated with free diver Roland Specker, who set a world record wearing this model. The reference in question, 210.30.42. 20.06.001 belongs to the generation produced since 2019 featuring a ceramic dial and was redesigned in conjunction with the introduction of the METAS-certified Master Chronometer calibers. The helium escape valve reflects the original design for saturation divers and remains a structural feature of the series to this day.

Caliber & Technology

The watch is powered by the Caliber 8800, a self-winding Co-Axial movement with a silicon balance spring, a free-springing balance, and double-sided winding. The power reserve is 55 hours at a frequency of 25,200 vibrations per hour and with 35 jewels. As a METAS-certified Master Chronometer, the movement withstands magnetic fields of up to 15,000 gauss, which virtually eliminates any interference from smartphones or speakers. The finishing includes rhodium-plated bridges with Geneva stripes in an arabesque pattern, visible through the glass, wave-shaped case back.

Case & Material

The case, made of stainless steel, measures 42 mm in diameter, is 13.6 mm thick, and is water-resistant to 300 meters. The unidirectional bezel features a blue ceramic insert with a white enamel scale for measuring dive time. The crown and case back are screw-down, and the sapphire crystal is anti-reflective on both sides and scratch-resistant. The finish combines satin-finished and high-gloss polished surfaces. The stainless steel bracelet fastens with a folding clasp featuring a push-button mechanism and an integrated extension link for a diving suit; the lug width is 20 mm.

Aesthetics & Readability

The gray ceramic dial features the series’ signature wavy relief pattern, combined with blue-burnished skeleton hands and raised hour markers. Both are filled with white Super-LumiNova, ensuring excellent readability even underwater and in the dark. The date window is classically positioned at 6 o’clock, and the dot indices are surrounded by a minute track along the outer edge of the dial. The combination of a gray dial and a blue bezel sets it apart visually from the standard versions in black or blue.

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For further information, see Technical Details.

BrandOmega
ModelSeamaster Professional Diver 300M Co-Axial Master Chronometer
Reference210.30.42.20.06.001
GenderMen's watch/unisex
Scope of deliveryWatch with original box and original papers
New/usedUsed
Overall conditionworn | barely visible signs of wear
Date of first sale2023
Case materialSteel
Bezel materialCeramics
GlassSapphire crystal
Diameter (mm)42
Thickness (mm)13.6
Lugs (mm)19
Clasp width (mm)18
Water resistance30 ATM
Wasserdichtigkeit und Ganggenauigkeit1
Water resistance1
Wasserdichtigkeit Gemessen (ATM)10
Bracelet materialSteel
Bracelet colorSteel
ClaspFolding clasp
Material claspSteel
Dial colorGray
Numbers dialNo digits
Caliber/MovementOmega Caliber 8800
WindingAutomatic
Power reserve55 h
Number of jewels25
Oscillation (A/h)25.200
FunctionsDate
OtherRotating bezel, guilloché dial, helium valve, Master Chronometer, original condition/original parts, quick-set mechanism, see-through case back, screw-down crown, blued steel hands, central seconds hand
Type of revisionRevision by manufacturer
Date22/06/2026
Accuracy1
Gangabweichung (Sekunden pro Tag)+3
Amplitude (Grad)301