Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink

Reference 310.20.42.50.99.001

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink

About this watch

The Omega Speedmaster Professional Moonwatch 310.20.42.50.99.001 is a stunning blend of tradition and innovation, featuring a unique Sedna Gold and pink finish. Its 42mm stainless steel case and Sedna Gold accents command attention, while the remarkable Omega caliber 3861 movement boasts a co-axial escapement, reducing friction for enhanced accuracy and longevity. Certified by METAS as a Master Chronometer, this watch can resist magnetic fields reaching an impressive 15,000 gauss. The sunburst pink finish adds sophistication, making it perfect for both casual and formal settings.
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Key Features

  • Omega caliber 3861 movement
  • 42mm stainless steel case
  • Sedna Gold accents
  • Co-axial escapement
  • Master Chronometer certified by METAS
  • 50m water resistance
  • Chronograph function

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink
Reference
310.20.42.50.99.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
42mm
Dial Color
Pink
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Date Chronometer 3210.50.00 — Big Seahorse, Cal. 1164 (Serviced) — $2,150 Shipped (Tariff Coverd)

Omega Speedmaster Date Chronometer 3210.50.00 — Big Seahorse, Cal. 1164 (Serviced) — $2,150 Shipped (Tariff Coverd)

Omega - 3210.50.00 · $2,150
This Omega Speedmaster Date Chronometer features a classic black dial and iconic tachymeter bezel, paired with the Cal. 1164 automatic chronometer-certified movement.

  • Condition: Honest wear consistent with age, minor signs of use on bezel insert
  • Case size: 40mm diameter
  • Movement: Cal. 1164 (ETA 7750 base)
  • Water resistance: unknown
Posted at
Apr 19, 2026, 8:21 AM
Active
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[WTS] Omega Speedmaster Moonwatch Sapphire / 310.30.42.50.01.002 / 2022 full set under warranty - $5950

Omega Speedmaster Moonwatch Sapphire / 310.30.42.50.01.002 / 2022 full set under warranty - $5950

Omega - 310.30.42.50.01.002 · $5,950
For sale is a Omega Speedmaster Moonwatch Sapphire Sandwich, overall in excellent condition.

  • Condition: Overall excellent condition with normal marks on the case, bracelet, clasp, and caseback
  • Year: 2022
  • Warranty: under warranty
Posted at
Apr 18, 2026, 9:40 PM
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[WTS] Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Ref 145.0044

Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Ref 145.0044

Omega - 145.0044 · $2,795
This is a rare vintage Omega Speedmaster Teutonic model made for the German market in the early 1980s. It features a unique gray dial, bead-blasted case, and integrated bracelet.

  • Condition: Pre-owned, with wear
  • Diameter: 42mm
  • Movement: Manual wound Omega cal 861
  • Bracelet length: fits up to app 7.25 inches
Posted at
Apr 18, 2026, 9:08 PM
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[WTS] Omega Speedmaster Dark Side of The Moon Black Ceramic 311.92.44.51.01.006 Full Set

Omega Speedmaster Dark Side of The Moon Black Ceramic 311.92.44.51.01.006 Full Set

Omega - 311.92.44.51.01.006 · $7,600
This Omega Speedmaster Dark Side of The Moon features a black ceramic case and bezel, with a black dial and vintage Super-LumiNova.

  • Condition: Excellent preowned condition with no signs of wear on the case, bracelet, bezel or buckle.
  • Case material: Black Ceramic
  • Case dimensions: 44.25mm diameter
  • Bezel material: Black Ceramic
Posted at
Apr 18, 2026, 9:05 PM
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[WTS] Omega Speedmaster Professional Moon Watch 42mm Steel 311.30.42.30.01.005 Box & Manual

Omega Speedmaster Professional Moon Watch 42mm Steel 311.30.42.30.01.005 Box & Manual

Omega - 311.30.42.30.01.005 · $5,100
A stainless steel Omega Speedmaster Professional Moon Watch in 42mm diameter with a black dial and manual wind movement.

  • Condition: Preowned with scratches on the case, bracelet, buckle and light scratches on the crystal
  • Case dimensions: 42mm diameter
  • Band material: Stainless Steel Bracelet
  • Additional straps: 2
Posted at
Apr 18, 2026, 8:13 PM
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[WTS] Omega Speedmaster Reduced - Mother of Pearl - White Dial - Factory Strap

Omega Speedmaster Reduced - Mother of Pearl - White Dial - Factory Strap

Omega - Speedmaster Reduced · $2,350
A super rare and unique Omega Speedmaster reduced model with a 39mm case, featuring a stunning Mother of Pearl dial.

  • Condition: Good condition for the age
  • Case size: 39mm
  • Strap type: Leather (factory)
  • Bezel wear: Some wear
Posted at
Apr 18, 2026, 5:59 PM
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[WTS] 2023 Omega Speedmaster ’57 Blue Dial 41.5mm 332.10.41.51.03.001 Full Set Excellent

2023 Omega Speedmaster ’57 Blue Dial 41.5mm 332.10.41.51.03.001 Full Set Excellent

Omega - 332.10.41.51.03.001 · $8,300
The Omega Speedmaster '57 features a striking sun-brushed blue dial with vintage-inspired hands and recessed sub-dials, paying homage to the iconic original.

  • Condition: Excellent
  • Diameter: 40.5mm
  • Material: stainless steel
Posted at
Apr 18, 2026, 2:38 PM
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[WTS] 2024 Omega Speedmaster ’57 Sedna Gold Two-Tone 41.5mm 331.22.42.51.01.001 Full Set Excellent

2024 Omega Speedmaster ’57 Sedna Gold Two-Tone 41.5mm 331.22.42.51.01.001 Full Set Excellent

Omega - 331.22.42.51.01.001 · $7,450
A vintage-inspired Speedmaster with modern Master Co-Axial engineering, featuring 18K Sedna gold case and black dial.

  • Condition: Excellent
  • Case material: 18K Sedna gold
  • Diameter: 41.5mm
Posted at
Apr 18, 2026, 2:33 PM
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[WTS] Omega Speedmaster 3513.20 Chrnograph Olympic Special Edition Blue Red Hands |Good conditon| Serviced| Full Box Paper Tag| 2300$

Omega Speedmaster 3513.20 Chrnograph Olympic Special Edition Blue Red Hands |Good conditon| Serviced| Full Box Paper Tag| 2300$

Omega - 3513.20 · $2,300
This Omega Speedmaster stands out with its white dial and eye-catching red and blue hands, making it a unique piece.

  • Condition: Good Condition, Serviced
  • Case Size: 39mm diameter
  • Crystal: Sapphire crystal
  • Lug Width: 20mm
Posted at
Apr 18, 2026, 12:59 PM
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