For sale is a 2021 Omega Speedmaster Professional “Sapphire Sandwich” Moonwatch, reference 310.30.42.50.01.002, the Master Chronometer Speedmaster with sapphire crystals front and back. This example is in excellent condition, fits approximately a 7.25" wrist with the supplied links, and comes as a complete set with box, cards, booklets, and the commemorative Omega Moonwatch book.
Key Features
Model: Omega Speedmaster Professional Moonwatch “Sapphire Sandwich”
Reference: 310.30.42.50.01.002
Year: 2021
Case: 42 mm stainless steel, asymmetrical lyre‑lug Moonwatch case
Bezel: Black anodized aluminum tachymeter bezel with “dot over 90” (DON) style
Crystal: Domed, scratch‑resistant sapphire crystal with anti‑reflective treatment on the inside; sapphire display caseback
Dial: Black step dial with three sub‑registers, applied Omega logo, vintage‑inspired minute track
Bracelet: Stainless‑steel 5‑link Moonwatch bracelet without the later on‑the‑fly micro‑adjust clasp; sized to ~7.25" wrist with current links, standard screw‑link sizing and limited internal micro‑adjust in the clasp
Movement: Omega Co‑Axial Master Chronometer calibre 3861, manual wind, METAS‑certified, anti‑magnetic to 15,000 gauss, ~50‑hour power reserve
Water resistance: 50 m / 5 bar
Detailed Description
This reference is the modern evolution of the classic Moonwatch, retaining the familiar 42 mm asymmetrical case, twisted lugs, and black tachymeter bezel while bringing the line into the Master Chronometer era. The “Sapphire Sandwich” configuration uses a domed sapphire crystal on the front and a sapphire display back, offering durability and a clear view of the movement while staying true to the Speedmaster’s iconic silhouette.
The black step dial features recessed sub‑dials, an applied Omega logo, and a period‑correct minute track, giving the watch a more vintage‑inspired character compared to the previous generation. Luminous hour markers and hands preserve legibility, and the classic tri‑compax layout with running seconds, 30‑minute, and 12‑hour counters keeps the dial balanced and unmistakably Moonwatch.
Inside, the hand‑wound calibre 3861 adds Co‑Axial technology, hacking seconds, and METAS‑certified Master Chronometer performance to the Moonwatch, with roughly 50 hours of power reserve and resistance to magnetic fields up to 15,000 gauss. This particular watch is on the earlier 3861‑era bracelet configuration, which offers a tapered 5‑link design and traditional clasp without the later easy‑adjust system, a detail many collectors like to note for originality.
Condition and Set
This 2021 Speedmaster Professional Sapphire Sandwich is in excellent condition, showing only minor signs of careful wear on the case and bracelet under close inspection. The bezel, dial, and both sapphire crystals are clean, and the bracelet is currently sized to fit approximately a 7.25" wrist with the supplied links, with further sizing possible via screw links and the clasp holes.
It comes as a full, well‑documented set, including:
Omega Speedmaster Professional Moonwatch “Sapphire Sandwich” ref. 310.30.42.50.01.002
Original inner and outer Omega presentation boxes
Warranty card and Master Chronometer/pictogram cards
Instruction booklet
Commemorative Omega Moonwatch book supplied with this generation
For someone seeking a calibre 3861 Speedmaster Professional with display back, original bracelet configuration, and complete presentation kit, this 2021 Sapphire Sandwich in excellent condition and sized around 7.25" is a superb, ready‑to‑wear example.
For sale is a 2021 Omega Speedmaster Professional “Sapphire Sandwich” Moonwatch, reference 310.30.42.50.01.002, the Master Chronometer Speedmaster with sapphire crystals front and back. This example is in excellent condition, fits approximately a 7.25" wrist with the supplied links, and comes as a complete set with box, cards, booklets, and the commemorative Omega Moonwatch book.
Key Features
Model: Omega Speedmaster Professional Moonwatch “Sapphire Sandwich”
Reference: 310.30.42.50.01.002
Year: 2021
Case: 42 mm stainless steel, asymmetrical lyre‑lug Moonwatch case
Bezel: Black anodized aluminum tachymeter bezel with “dot over 90” (DON) style
Crystal: Domed, scratch‑resistant sapphire crystal with anti‑reflective treatment on the inside; sapphire display caseback
Dial: Black step dial with three sub‑registers, applied Omega logo, vintage‑inspired minute track
Bracelet: Stainless‑steel 5‑link Moonwatch bracelet without the later on‑the‑fly micro‑adjust clasp; sized to ~7.25" wrist with current links, standard screw‑link sizing and limited internal micro‑adjust in the clasp
Movement: Omega Co‑Axial Master Chronometer calibre 3861, manual wind, METAS‑certified, anti‑magnetic to 15,000 gauss, ~50‑hour power reserve
Water resistance: 50 m / 5 bar
Detailed Description
This reference is the modern evolution of the classic Moonwatch, retaining the familiar 42 mm asymmetrical case, twisted lugs, and black tachymeter bezel while bringing the line into the Master Chronometer era. The “Sapphire Sandwich” configuration uses a domed sapphire crystal on the front and a sapphire display back, offering durability and a clear view of the movement while staying true to the Speedmaster’s iconic silhouette.
The black step dial features recessed sub‑dials, an applied Omega logo, and a period‑correct minute track, giving the watch a more vintage‑inspired character compared to the previous generation. Luminous hour markers and hands preserve legibility, and the classic tri‑compax layout with running seconds, 30‑minute, and 12‑hour counters keeps the dial balanced and unmistakably Moonwatch.
Inside, the hand‑wound calibre 3861 adds Co‑Axial technology, hacking seconds, and METAS‑certified Master Chronometer performance to the Moonwatch, with roughly 50 hours of power reserve and resistance to magnetic fields up to 15,000 gauss. This particular watch is on the earlier 3861‑era bracelet configuration, which offers a tapered 5‑link design and traditional clasp without the later easy‑adjust system, a detail many collectors like to note for originality.
Condition and Set
This 2021 Speedmaster Professional Sapphire Sandwich is in excellent condition, showing only minor signs of careful wear on the case and bracelet under close inspection. The bezel, dial, and both sapphire crystals are clean, and the bracelet is currently sized to fit approximately a 7.25" wrist with the supplied links, with further sizing possible via screw links and the clasp holes.
It comes as a full, well‑documented set, including:
Omega Speedmaster Professional Moonwatch “Sapphire Sandwich” ref. 310.30.42.50.01.002
Original inner and outer Omega presentation boxes
Warranty card and Master Chronometer/pictogram cards
Instruction booklet
Commemorative Omega Moonwatch book supplied with this generation
For someone seeking a calibre 3861 Speedmaster Professional with display back, original bracelet configuration, and complete presentation kit, this 2021 Sapphire Sandwich in excellent condition and sized around 7.25" is a superb, ready‑to‑wear example.
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