OMEGA · Speedmaster Dark Side of the Moon and Speedmaster '57
OMEGA 310.92.44.51.01.004 vs OMEGA 332.10.41.51.01.001
10 published specifications differ between these two, and 4 are identical. Every figure below is what the manufacturer states for that reference; nothing is inferred from the other watch.
What differs
| Specification | OMEGA Dark Side of the Moon, black ceramic, 44.25mm310.92.44.51.01.004 | OMEGA Speedmaster '57 Co-Axial Master Chronometer Chronograph 40.5mm332.10.41.51.01.001 |
|---|---|---|
| Case | Black ceramic, 44.25 mm | Steel, 40.5 mm |
| Diameter | 44.25 mm | 40.5 mm |
| Thickness | 15.09 mm | 12.99 mm |
| Lug to lug | 50 mm | 49.64 mm |
| Lug width | 21 mm | 20 mm |
| Bracelet | Black rubber strap | Steel |
| Clasp | Foldover clasp in ceramic | Foldover clasp with comfort setting |
| Calibre | Omega 9900 | OMEGA 9906 |
| Movement | Self winding | Manual-winding |
| Movement notes | Listed by OMEGA as a Master Chronometer certified watch. Total product weight approximately 108 g. | Listed by OMEGA as a Master Chronometer certified watch. Total product weight approximately 134 g. |
What is identical
Worth knowing as much as the differences: these are the specifications you cannot use to tell the two apart.
- Water resistance
- 5 bar (50 metres / 165 feet)
- Crystal
- Scratch-resistant sapphire crystal with anti-reflective treatment on both sides
- Dial
- Black
- Power reserve
- 60 hours
What the differences cost you
Each note below follows from the published figures in the tables above — what they mean for intake, for a listing, and for the handover. Nothing here estimates a price or a margin.
These reach different buyers
44.3 mm on the 310.92.44.51.01.004 against 40.5 mm on the 332.10.41.51.01.001. Diameter is a poor predictor of how a watch actually sits, but it is the field buyers filter on, so the two land in front of different people. Do not let one listing's photographs or copy stand in for the other.
A visible difference in how they wear
2.1 mm of thickness separates these, with the 310.92.44.51.01.004 the taller at 15.1 mm. That is the difference between a watch that goes under a cuff and one that catches on it — worth a photograph from the side rather than a number in a table.
Two different ownership conversations
The 310.92.44.51.01.004 is self-winding and the 332.10.41.51.01.001 is hand-wound. That changes what a buyer needs telling at handover, and it changes intake: a hand-wound watch has no rotor to mask a tired mainspring, and a stopped quartz watch is usually a battery rather than a fault.
Different case materials, different handling
The 310.92.44.51.01.004 is ceramic and the 332.10.41.51.01.001 is steel. Different case materials mark, polish and refinish differently, so the condition language that fits one will mislead on the other. Photograph and describe each on its own terms.
What to check on each
310.92.44.51.01.004
- Look for chips, not scratches. Ceramic is far harder than steel and will not abrade, so a case that appears immaculate can still carry a bright conchoidal flake at an edge.
- Inspect the ceramic buckle as carefully as the case. OMEGA specifies the buckle material as ceramic here, and a ceramic clasp that has been dropped is a part you cannot source from a steel donor.
- Accept that nothing on this case can be refinished. There is no polishing a ceramic watch, so any damage you find is permanent and must be disclosed and priced.
332.10.41.51.01.001
- Wind it from stopped and pay attention to the feel. This is a manual movement, so your fingers are directly on the barrel and the train, and resistance that is uneven or a stop that arrives early is a real finding.
- Never force the crown past its stop. A manual mainspring has no slipping bridle to protect it, and a previous owner used to automatics may already have tried.
- Note the 60-hour reserve, which is long for a hand-wound chronograph and means a buyer can skip a day without resetting.
Sources
- OMEGA official product page for reference 310.92.44.51.01.004 (Speedmaster Dark Side of the Moon Co-Axial Master Chronometer Chronograph 44.25 mm, black ceramic) - Between lugs: 21 mm; Lug-to-lug: 50.00 mm; Thickness: 15.09 mm; Case diameter: 44.25 mm; Case: Black ceramic; Dial color: Black; Crystal: Scratch-resistant sapphire crystal with anti-reflective treatment on both sides; Water resistance: 5 bar (50 metres / 165 feet); Total product weight (approx.): 108 g; Caliber: Omega 9900; Movement type: Self winding; Power reserve: 60 hours; Strap color: Black; Strap type: Rubber strap; Buckle type: Foldover clasp; Buckle material: Ceramic — retrieved 2026-09-23
- OMEGA official product page for reference 332.10.41.51.01.001 (Speedmaster '57 Co-Axial Master Chronometer Chronograph 40.5 mm, steel) - Between lugs: 20 mm; Lug-to-lug: 49.64 mm; Thickness: 12.99 mm; Case diameter: 40.5 mm; Case: Steel; Dial color: Black; Crystal: Scratch-resistant sapphire crystal with anti-reflective treatment on both sides; Water resistance: 5 bar (50 metres / 165 feet); Total product weight (approx.): 134 g; Caliber: OMEGA 9906; Movement type: Manual-winding; Power reserve: 60 hours; Bracelet material: Steel; Type of Clasp: Foldover clasp with comfort setting — retrieved 2026-09-23
Not affiliated with OMEGA. Specifications are read from each manufacturer's own published documentation on the dates shown and may change; the manufacturer's current documentation governs.