Omega Seamaster Professional, 36.25mm, Co-Axial Calibre 2500 automatic, COSC-certified chronometer, 212.30.36.20.01.002

The Omega Seamaster Professional 212.30.36.20.01.002 combines a black dial and matching ceramic bezel with a compact 36.25mm stainless-steel case. Its skeleton hands, luminous hour markers and date display retain the familiar Seamaster Diver 300M identity, while the smaller proportions offer a more discreet presence on the wrist. Presented on a stainless-steel bracelet, it brings sporting character to a size equally suited to everyday wear.

Inside is the Omega Co-Axial Calibre 2500, a chronometer-certified automatic movement with a 48-hour power reserve. Its Co-Axial escapement reduces sliding friction within the escapement, an important development in Omega’s modern mechanical watchmaking. Automatic winding and a practical date display make this reference an appealing choice for enthusiasts who appreciate both technical substance and comfortable proportions.

Specifications

• Brand: Omega

• Model: Seamaster Professional Diver 300M

• Reference: 212.30.36.20.01.002

• Movement: Omega Co-Axial Calibre 2500 automatic, COSC-certified chronometer

• Case Material: Stainless steel

• Dial: Black

• Case Size: 36.25mm

• Case Thickness: 12.7mm

• Bezel: Black ceramic, unidirectional rotating

• Crystal: Domed scratch-resistant sapphire with anti-reflective treatment on both sides

• Caseback: Solid stainless steel, screw-down

• Bracelet / Strap: Stainless-steel bracelet with folding clasp and diver extension

• Wrist Size: Fits up to 20cm

• Water Resistance: 300m – not guaranteed due to age

• Power Reserve: 48 hours

• Production Period / Year: Circa 2010s; individual year unspecified

• Functions: Hours, minutes, seconds, date and helium-escape valve

• Accessories: papers

• Condition: Traces of usage, scratches can be seen but generally in good condition

• Availability: Available through our Global Concierge Sourcing Service

Key Features

• Co-Axial Calibre 2500 — Chronometer-certified automatic movement with Omega’s Co-Axial escapement and a 48-hour power reserve.

• Black Dial and Ceramic Bezel — A restrained colour pairing with distinctive skeleton hands and luminous markers.

• 36.25mm Case — Compact proportions offering the Seamaster’s sporting identity in a comfortable everyday size.

• Sapphire Crystal — Domed, scratch-resistant crystal with anti-reflective treatment on both sides.

• Diving Heritage — A unidirectional timing bezel, screw-down crown and helium-escape valve reflect the collection’s professional diving origins.

For someone seeking a smaller automatic Seamaster, this reference offers a compelling combination of familiar design, ceramic-bezel detail and Co-Axial watchmaking. Accompanied by papers, it is available through our Global Concierge Sourcing Service.

Style is Timeless.