[WTS] Omega Seamaster 2551.80 (Midsize Automatic)

Omega Seamaster 2551.80 (Midsize Automatic)

Omega - 2551.80 · $1,995
A midsize Omega Seamaster Professional from the 2551 series, featuring a vintage faded bezel and great timekeeping performance.

  • Condition: Excellent, patina
  • Wrist size: 180mm
  • Timegrapher reading: running great
Posted at
Apr 20, 2026, 6:26 PM
Active
[WTS] Omega Seamaster 2551.80 36mm - $1,990

Omega Seamaster 2551.80 36mm - $1,990

Omega - 25518000 · $1,990
A pre-owned Omega Seamaster 2551.80 in excellent working condition, featuring an automatic movement and a steel case on original Omega bracelet.

  • Condition: Good condition for its age with minimal marks/hairlines
  • Case size: 36mm diameter
  • Movement: Omega Calibre 1120 automatic movement
Posted at
Mar 31, 2026, 9:22 PM
Expired
[WTS] Omega Seamaster 36mm 2551.80 Automatic 1️⃣,7️⃣5️⃣0️⃣ 🇺🇸

Omega Seamaster 36mm 2551.80 Automatic 1️⃣,7️⃣5️⃣0️⃣ 🇺🇸

Omega - 2551.80 · $1,750
A 36mm Omega Seamaster Professional Automatic Movement, priced to sell and in almost complete set.

  • Condition: Good
  • Size: 36mm diameter
  • Set included: Almost complete set
Posted at
Mar 22, 2026, 11:34 PM
Sold
[WTS] Omega Seamaster 2551.80 36mm Box and Undated Card - $1,990

Omega Seamaster 2551.80 36mm Box and Undated Card - $1,990

Omega - 2551.80 · $1,990
Up for sale is my great condition Omega Seamaster 2551.80, measuring at 36mm with an automatic Omega Calibre 1120 movement.

  • Condition: Very good condition for its age, minimal marks/hairlines on the case, caseback, and bracelet.
  • Movement: Omega Calibre 1120
  • Case size: 36mm diameter
  • Bracelet material: Steel
Posted at
Mar 22, 2026, 10:50 PM
Expired
[WTS] Omega Seamaster 300M 2551.80 Automatic, 36mm midsize, watch only PLEASE READ $1625

Omega Seamaster 300M 2551.80 Automatic, 36mm midsize, watch only PLEASE READ $1625

Omega - 2551.80.00 · $1,625
The Neo-vintage Omega Seamaster 300M is a mid-sized 36mm diver with an unknown serial number (estimated year). It has been overhauled by a watchmaker and now runs at +7, 260+ amp per timegrapher.

  • Condition: 7/10, minor dings and desk scratches
  • Case Size: 36mm diameter
  • Bracelet Length: up to 7.5"
  • Bezel Condition: fading turns but is tight
Posted at
Mar 11, 2026, 3:58 PM
Sold
[WTS] Omega Seamaster 2551.80 - Tritium Dial (Midsize Automatic) - Clean!

Omega Seamaster 2551.80 - Tritium Dial (Midsize Automatic) - Clean!

Omega - 2551.80 · $1,995
This Omega Seamaster Professional is a midsize automatic watch with a tritium dial that has developed fantastic patina.

  • Condition: Excellent, minor wear marks
  • Wrist size: included photo
Posted at
Mar 10, 2026, 4:33 PM
Sold
[WTS] Omega Seamaster 2551.80 - Tritium Dial (Midsize Automatic) - Clean!

Omega Seamaster 2551.80 - Tritium Dial (Midsize Automatic) - Clean!

Omega - 2551.80 · $1,995
This Omega Seamaster Professional 2551.80 is a midsize automatic watch with a tritium dial, featuring a fantastic patina.

  • Condition: Fantastic shape for the age, minor wear marks throughout
  • Wrist size: refer to photo
Posted at
Feb 23, 2026, 6:03 PM
Expired
[WTS] Omega Seamaster 2551.80 (Midsize Automatic) - Clean!

Omega Seamaster 2551.80 (Midsize Automatic) - Clean!

Omega - 2551.80 · $1,995
This Omega Seamaster Professional 2551.80 is in fantastic shape for the age, with minor wear marks throughout.

  • Condition: Fantastic shape for the age, minor wear marks throughout
  • Wrist size: available in photo
Posted at
Feb 20, 2026, 7:15 PM
Sold
[WTS] Omega Seamaster 2551.80 Watch only!

Omega Seamaster 2551.80 Watch only!

Omega - 2551.80 · $1,850
A vintage Omega Seamaster with phenomenal patina and aged well in all the right places, runs great at -2.1 sec/day.

  • Condition: Pre-owned with minor scratches
  • Patina status: phenomenal
  • Accuracy: -2.1 sec/day at Amp 247
  • Bezel condition: clean
Posted at
Feb 6, 2026, 6:31 PM
Expired