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Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph 42mm

The Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph 42mm (310.30.42.50.01.002) is a chronograph from Omega: a 42 mm stainless steel case, with a manual Omega 3861 movement and 50 m water resistance.

Its lug-to-lug length is unknown, so wrist fit can only be judged from the 42 mm case width.

Research found it at $9,000 list in the US (checked August 2026) and $7,650 on the street (August 2026).

Specifications

From the research, with the sources for each group of facts. Unknown means no source confirmed it.

Specifications of the Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph 42mm, grouped, with the sources for each group
The watch [1][2][3]
BrandOmega
Reference310.30.42.50.01.002
CategoryChronograph
ProductionCurrent (introduced 2021)
Case and size [1][2]
Case diameter42 mm
Lug to lugUnknown
ThicknessUnknown
Lug widthUnknown
Case materialStainless steel
CrystalDomed anti-reflective scratch-resistant sapphire
Water resistance5 bar (50 m)
WeightUnknown
Movement [1][2][3]
MovementOmega 3861, manual
Power reserve50 h
AccuracyMETAS Master Chronometer standard
Bracelet [1][2]
Bracelet or strapPolished-brushed steel bracelet, five arched links per row
ClaspDeployant/folding clasp with push-release
Price and warranty (US) [2][4]
List price (US)$9,000 (authorized dealer and unworn-market listings, 2026-08)
Street price (US)$7,650 new/unworn 2025 example with full set (2026-08) (August 2026)
Used price (US)Not independently re-verified
Warranty5-year Omega warranty

Will it fit?

The research didn’t find a sourced lug-to-lug length for this watch, so the fit can’t be estimated here. If you can measure one, try it in the wrist-fit tool.

What the research found

These are the research’s judgments, scored against Holden’s priorities, not his own words.

Strengths

  • The strongest product story in watchmaking - flight-qualified Moonwatch lineage, unbroken since 1965, with the 'dot over 90' bezel and step dial faithfully executed [1][2]
  • Cal 3861 modernizes the hand-wound icon with Co-Axial escapement and METAS certification without breaking its identity [2][3]
  • Sapphire sandwich shows the finished 3861 - the display back justifies this reference over the hesalite [2]
  • Deep service continuity: Omega has serviced this movement lineage for 60 years [1]
  • Meaningful street discount: $6.5-7.7k observed vs $9,000 retail [4]

Weaknesses

  • 50m WR and push-pull crown - not a wet-environment watch
  • Manual winding daily/every-other-day is a lifestyle commitment (50h reserve)
  • Sapphire version carries a price premium over the hesalite that is partly aesthetic preference

Research scores, 0 to 10

Execution and feel in the hand9.0
Design identity9.5
Value at a realistic price8.0
Long-term ownership9.5
Movement and engineering9.0
Wearability and proportions8.6
Versatility and durability7.8
Fit with Holden's collection7.6

Also on Holden’s list

Other chronograph watches on his list.

  • Parmigiani Fleurier Chronographe Mystérieux PFC908-1020001-100182
  • Seiko Speedtimer Solar Chronograph SSC961
  • Nezumi Studios Corbeau 702 / DLC CQ4.702
  • Furlan Marri Nero Sabbia 1072-A
  • Sinn Chronograph 356 Pilot 356.020

Sources

  1. Moonwatch Professional Speedmaster Steel Master Chronometer Certified Watch 310.30.42.50.01.002 | OMEGA US omegawatches.com · read August 26, 2026
  2. OMEGA Speedmaster Moonwatch Professional 'Sapphire Sandwich' Cal. 3861 310.30.42.50.01.002 - product listing feldmarwatch.com · read August 26, 2026
  3. Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 | Chrono24 reference page chrono24.com · read August 26, 2026
  4. Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 - pre-owned/unworn listing sethandcowatches.com · read August 26, 2026

Personal research, not a source of truth. Spotted an error? Email a correction.

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