[WTS] Omega Speedmaster Automatic Day-Date 3520.50.00 MK 40 | Great Condition (Serviced) | $2450

Omega Speedmaster Automatic Day-Date 3520.50.00 MK 40 | Great Condition (Serviced) | $2450

Omega - 3520.50.00 MK 40 · $2,450
The Omega Speedmaster Automatic Day-Date features a stainless steel case with a twisted-lug design and domed sapphire crystal, powered by the modified Valjoux 7751 automatic chronograph movement.

  • Condition: Great condition, serviced
  • Movement: Omega 1151 (modified Valjoux 7751)
  • Case dimensions: 39mm diameter, 44.75mm lug-to-lug, 14mm thick
  • Lug width: 18mm
Posted at
Mar 10, 2026, 10:34 PM
Active
[WTS] Omega Speedmaster Triple Date “Mk40” Ref. 3520.53.00 — Full Set — $2,850 (Serviced / Shipped / Tariff Covered)

Omega Speedmaster Triple Date “Mk40” Ref. 3520.53.00 — Full Set — $2,850 (Serviced / Shipped / Tariff Covered)

Omega - 3520.53.00 · $2,850
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
Posted at
Feb 10, 2026, 10:09 AM
Sold
[WTS] Omega Speedmaster Triple Day Date 3520.50 $2,100

Omega Speedmaster Triple Day Date 3520.50 $2,100

Omega - 3520.50 · $2,100
The Omega Speedmaster Triple Day Date features a busy yet legible dial coupled with the unmistakable Speedmaster design language and runs on the Omega 1151, Valjoux 7751 triple-date automatic chronograph.

  • Condition: Preowned - Good
  • Case diameter: 39mm
Posted at
Nov 10, 2025, 7:13 AM
Sold
[WTS] 1998 Omega Speedmaster Automatic Day-Date 3520.50.00 MK 40 | Great Condition (Serviced) | $2575

1998 Omega Speedmaster Automatic Day-Date 3520.50.00 MK 40 | Great Condition (Serviced) | $2575

Omega - 3520.50.00 MK 40 · $2,575
A 1998 Omega Speedmaster Automatic Day-Date watch in great condition with minor scratches on the case and bracelet, powered by an automatic chronograph movement with a 54-hour power reserve.

  • Condition: Great, serviced condition
  • Case Size: 39mm
  • Lug To Lug: 44.75mm
  • Thickness: 14mm
Posted at
Aug 13, 2025, 12:11 AM
Expired
[WTS] The Omega Speedmaster Automatic Day-Date 3520.50.00 MK 40 | Great Condition (Serviced) | $2700

The Omega Speedmaster Automatic Day-Date 3520.50.00 MK 40 | Great Condition (Serviced) | $2700

Omega - 3520.50.00 MK 40 · $2,700
The Omega Speedmaster Automatic Day-Date 3520.50.00 features a 39mm stainless steel case with a twisted-lug design and domed sapphire crystal. It includes a triple-calendar complication and is powered by the Omega 1151 movement.

  • Condition: Great serviced condition
  • Case size: 39mm
  • Thickness: 14mm
  • Lug width: 18mm
Posted at
Jul 7, 2025, 11:48 PM
Expired
[WTS] The Omega Speedmaster Automatic Day-Date 3520.50.00 MK 40 | Great Condition (Serviced) | $2700

The Omega Speedmaster Automatic Day-Date 3520.50.00 MK 40 | Great Condition (Serviced) | $2700

Omega - 3520.50.00 · $2,700
The Omega Speedmaster Automatic Day-Date features a stainless steel case with a twisted-lug design and domed sapphire crystal, powered by the Omega 1151 movement. It includes a triple-calendar complication and has a water resistance rating of 50 meters.

  • Condition: Great serviced condition
  • Case size: 39mm diameter
  • Lug-to-lug: 44.75mm
  • Thickness: 14mm
Posted at
Jun 24, 2025, 9:47 PM
Expired
[WTS] Omega Speedmaster. Triple Calendar. Automatic. Chronograph. 3520.50.00 Triple date $1950 Serviced

Omega Speedmaster. Triple Calendar. Automatic. Chronograph. 3520.50.00 Triple date $1950 Serviced

Omega - 3520.50.00 · $1,950
Up for sale is my Omega Speedmaster Automatic Day Date 5520.50.00. This watch has a really neat and complicated design with a Sapphire crystal and lots of lume.

  • Condition: overall good condition, some little chipping in black paint on the bezel
  • Case Diameter: 39mm
  • Between Lugs: 18mm
  • Crystal Type: scratch-resistant sapphire crystal with anti-reflective treatment inside
Posted at
Mar 4, 2025, 3:45 PM
Sold
[WTS] [WTS] Omega Speedmaster. Triple Calendar. Automatic. Chronograph. 3520.50.00 Triple date $1950

[WTS] Omega Speedmaster. Triple Calendar. Automatic. Chronograph. 3520.50.00 Triple date $1950

Omega - 3520.50.00 · $1,950
A 39MM Omega Speedmaster Automatic Day Date with a complicated triple date feature and a Valjoux 7751 movement.

  • Condition: Good, with minor chipping in black paint on the bezel
  • Movement: Omega 1151, Valjoux 7751
  • Case size: 39MM diameter
Posted at
Feb 19, 2025, 2:32 PM
Expired