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OMEGA Speedmaster Moonwatch Professional

OMEGA Speedmaster Moonwatch Professional

Manual WindingGold/Steel

Ref. 310.20.42.50.99.001

Collection: SpeedmasterCase size: 42mmMovement: 3861

Omega Speedmaster Moonwatch Professional reference 310.20.42.50.99.001 is a chronograph with a 42 mm case in steel and gold. The case is 13.18 mm thick and measures 47.5 mm lug to lug. The bezel is ceramic and the crystal is sapphire. Calibre 3861 is a manual-winding Master Chronometer movement with a 50 hour power reserve. The pink dial has a tachymeter and small seconds. The watch also has a display back. A steel and gold bracelet is fitted with a foldover clasp with comfort setting. Omega rates the case to 50 metres.

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Last updated 5 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

42mm

Thickness

13.18mm

Lug to Lug

47.5mm

Lug Width

20mm

Case Material

Gold/Steel

Water Resistance

50m

Crystal

Sapphire Crystal

Bezel Material

Ceramic

MOVEMENT

Movement Type

Manual Winding

Caliber

3861

Frequency

21,600 vph (3 Hz)

Jewels

27 jewels

DIAL

Dial Color

Pink

Numerals

Lines

BRACELET/STRAP

Bracelet/Strap

Gold/Steel

Clasp Type

Fold Clasp

Clasp Material

Gold/Steel

FEATURES & COMPLICATIONS

ChronographTachymeterMaster ChronometerChronometerDisplay backSmall seconds

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