The Omega Speedmaster Professional 3861 'Sapphire Sandwich' is a highly sought-after chronograph configuration that demands a physical relationship with its mechanical intimacy. The watch features a crisp, metallic ratcheting resonance from the Caliber 3861 and a massive edge-to-edge sapphire caseback offering a mesmerizing view of the movement.

• Condition: Lightly worn, very sharp lines, flawless finishes, immaculate aluminum tachymeter bezel
• Bracelet type: Stainless steel
• Bracelet width tapering: 20mm -> 15mm
• Movement function: Manual-wind

This Omega Speedmaster Moonwatch Sapphire Sandwich features a 42mm case, manual-winding Caliber 3861 with 50 hours of power reserve, and comes equipped with the standard brushed and polished OEM Omega "sapphire sandwich" bracelet. It was purchased from an Omega boutique in June 2022.

• Condition: amazing condition
• Case diameter: 42mm
• Case thickness: 13.18mm
• Lug width: 20mm

The Omega Speedmaster Moonwatch Professional features a robust and elegant 42mm stainless steel case with a hesalite front and solid case back powered by the updated caliber 3861 movement.

• Condition: Brand new in box with warranty
• Case size: 42mm diameter
• Case thickness: 13.2mm
• Lug width: 20mm

The modern Speedmaster features the METAS-certified 3861 movement and comes in a full set including both the newer micro-adjust clasp and original clasp.

• Condition: Excellent with light signs of wear
• Case material: Sapphire
• Movement certification: METAS-certified

This 2025 Omega Speedmaster 'First Omega in Space' is a tribute to the CK2998 worn by Wally Schirra on the Mercury-Atlas 8 mission, featuring a grey-blue CVD-coated dial and Cal. 3861 Co-Axial Master Chronometer.

• Case Size: 39.7mm
• Water Resistance: 50m

The Omega Speedmaster Professional Moonwatch features a black dial, sapphire crystal, and exhibition caseback showcasing the Omega Caliber 3861 movement.

• Condition: Small ding at 180, crystal is clean and running as expected.
• Case size: 42mm
• Dial color: black
• Crystal type: sapphire (front & exhibition caseback)

This is the latest generation Omega Speedmaster Professional Moonwatch with a Co-Axial Master Chronometer movement and sapphire crystal front and back, available in excellent overall condition.

• Condition: Excellent overall condition, very light wear from normal use
• Movement: Co-Axial Master Chronometer
• Crystal: sapphire crystal, both front and back

A classic Omega Speedmaster Professional Moonwatch from 2022, featuring a Co-Axial Master Chronometer movement and sapphire crystal front and back. It's in excellent condition, with clean crystal and a great-bracelet.

• Condition: Excellent overall condition
• Case size: 40mm diameter
• Water resistance: 50m water resistant

A classic Omega Speedmaster Professional Moonwatch in excellent condition, featuring a sapphire crystal front and back, Co-Axial Master Chronometer movement, and original and upgraded bracelet clasps.

• Condition: Excellent overall condition, very light wear from normal use
• Box And Papers: full set
• Bracelet Length: full links plus additional uncle Seiko 1.5 links
• Clasp Type: original clasp + micro-adjust clasp