A neo-vintage chronograph from the 1990s with a unique triple calendar layout and chronograph functionality.

• Condition: Great Condition, Serviced
• Caliber: Caliber 1151 (based on Valjoux 7751)
• Case Size: 39mm diameter
• Lug To Lug: 45mm

The Omega Speedmaster Day-Date MK40 Ref.3520.53.00 is a 39mm full calendar chronograph with a unique dial layout and the Omega Caliber 1151 movement.

• Condition: Great, serviced condition
• Size: 39mm diameter
• Movement: Omega Caliber 1151 (based on Valjoux 7751)
• Power reserve: 42 hours

A masterclass in packaging, this Omega Speedmaster Mk40 (Ref. 3520.50) features a 12-hour chronograph, 24-hour indicator, and full calendar in a 39mm case that wears significantly better than the standard 42mm Professional.

• Condition: Good condition with honest wear on the case and minor issues with lyre lugs.
• Case Condition: Good condition with honest wear on the left side of the case
• Dial Condition: Matte black is flawless
• Movement Status: Running strong

The Omega Speedmaster Mk40 (Ref. 3520.50) is a Triple Date watch that fits a 12-hour chronograph, 24-hour indicator, and a full calendar into a 39mm case.

• Condition: Good condition with honest wear. Most obvious wear can be found on the left side of the case.
• Case wear: honest wear on left side of case
• Dial condition: flawless
• Movement performance: running strong, chronograph starts, stops, and resets to zero perfectly

A masterclass in packaging, the Omega Speedmaster Mk40 (Ref. 3520.50) features a 12-hour chronograph, 24-hour indicator, and full calendar in a case that wears better than standard 42mm Professional models.

• Condition: Good condition with honest wear. Small concentration of tiny pin marks on the left side of the case.
• Case Wear: left side
• Diameter: 39mm
• Lug To Lug: 44.5mm

This Omega Speedmaster Triple Calendar Mk40 Cosmos is a 39mm watch featuring a black dial and bezel, powered by the Omega 1151 Caliber. It includes day, date, and month functions, making it a versatile and wearable timepiece.

• Condition: Fair user condition with light scratches on case and bracelet
• Case size: 39mm
• Lug-to-lug length: 44.75mm
• Bracelet size range: up to 6.75"

This Omega Speedmaster Triple Date features a black dial with tritium markers, triple calendar, and moonphase functionality. The watch is powered by an automatic chronograph movement and comes in a stainless steel case.

• Condition: Very good overall condition with light, honest wear on case
• Case diameter: 39mm
• Lug width: 18mm
• Crystal type: Sapphire, AR coated

This Omega Speedmaster Triple Calendar Mk40 Cosmos features a 39mm case size, black dial, and bezel, powered by the Omega 1151 Caliber. It has a day, date, and month function.

• Condition: Fair user condition
• Case size: 39mm
• Lug-to-lug: 44.75mm
• Bracelet size: fits up to 6.75"

The Omega Speedmaster Triple Date Cosmic MK40 features a 3 date complication, showing day, date, and month.

• Condition: overall good condition for its age with normal wear
• Size: 39mm diameter
• Movement: Caliber 1151