Omega Speedmaster Moonwatch Professional Master Chronometer
310.30.42.50.01.002
- Case
- 42mm
- MSRP
- $9,000
- Movement
- Manual
- Reserve
- 50h
VS
Building 1v1 comparison
Building 1v1 comparison
1v1 Watch Comparison
A focused side-by-side page for specs, fit, movement details, review notes, and enthusiast context.
310.30.42.50.01.002
SN41-CHR-SS-BK-B
Pair Review
Built from the saved specs and wearability notes for these two watches, then weighed against enthusiast priorities like fit, movement quality, practicality, finishing, value, and collector appeal.
Where it wins
Wins for buyers who prefer its overall mix of specs, fit, ownership appeal, and value.
Where it wins
You want a lighter watch with a more modern integrated-sports aesthetic.
The Omega uses the manual-wind Caliber 3861, a 26-jewel movement running at 3 Hz with 50 hours of power reserve. It is METAS-certified and listed with 15,000 gauss magnetic resistance, which is a major technical advantage for real-world reliability in magnetically noisy environments. The Bremont uses the automatic Caliber BC77AC, a 27-jewel movement running at 4 Hz with 62 hours of power reserve, and it is COSC-certified, which supports chronometer-grade performance. On paper, the Bremont has the longer reserve and higher beat rate, while the Omega brings stronger anti-magnetic engineering and more advanced certification. The Omega’s manual-wind architecture also adds enthusiast appeal, though the Bremont is more convenient for daily use. Winner: Omega
The Omega is 42 mm wide, 13.18 mm thick, 47.5 mm lug-to-lug, and 138 g on the bracelet. The Bremont is slightly smaller in diameter at 41 mm, but it is thicker at 14.4 mm, longer lug-to-lug at 48.7 mm, and significantly lighter at 106 g. In practice, the Omega should feel more planted and substantial, while the Bremont should feel noticeably lighter and less fatiguing over long wear. The Omega’s overall wearability summary says the 42 mm case wears closer to a compact sports chronograph than the dimensions suggest, helped by the short lug-to-lug and twisted-lug case design, and that the redesigned bracelet wears slimmer and more comfortably than earlier Speedmasters. The Bremont’s summary emphasizes that the 41 mm, sub-49 mm lug-to-lug proportions are more wearable than the angular case architecture first suggests, and that the integrated bracelet feels cohesive. For comfort, the Bremont’s low weight is a major advantage; for balanced fit and classic chronograph presence, the Omega is stronger. Winner: Tie
The Omega offers a black dial, Super-LumiNova, sapphire crystal, a tachymeter bezel, a transparent caseback, and a steel bracelet with a foldover clasp and 2.3 mm of micro-adjustment. It has 50 m water resistance and no date, making it highly legible and faithful to the Moonwatch formula, but less broadly versatile than a modern sports watch. The Bremont has a black galvanic dial, a domed anti-reflective scratch-resistant sapphire crystal, a black ceramic bezel ring, an open case back, a butterfly clasp, and a date display. It has 100 m water resistance, which makes it the better pick for swimming or more carefree everyday use, and its fully modern integrated-sports design is more contemporary in feel. The Omega is stronger for lume and classic chronograph legibility, while the Bremont is stronger for water resistance and daily robustness. Winner: Bremont
The Omega lists a higher MSRP at USD 9,000 versus the Bremont at USD 8,250, so the Bremont is the lower-priced option. However, value here is not just about price: the Omega brings stronger brand heritage signals through the Speedmaster/Moonwatch lineage, METAS certification, and the highly regarded 3861 movement, all of which support long-term enthusiast interest and a more iconic ownership experience. The Bremont offers 904L steel construction, a DLC-coated mid-case, a ceramic bezel ring, COSC certification, and a distinctive design, which gives it strong material and engineering appeal. For collector gravity and historical resonance, the Omega is the more meaningful package; for lower MSRP and a more contemporary integrated-sports identity, the Bremont is appealing. Winner: Omega
Compared
310.30.42.50.01.002
SN41-CHR-SS-BK-B