Grand Seiko Heritage Spring Drive Shunbun SBGA413 vs Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer 42 mm (Hesalite) 310.30.42.50.01.001
Specifications
Marked rows differ| Case | ||
| Case diameter | 40 mm | 42 mm |
|---|---|---|
| Thickness | 12.8 mm | 13.58 mm |
| Lug-to-lug | 47 mm | 47.46 mm |
| Water resistance | 100 m | 50 m |
| Movement | ||
| Movement | Spring Drive (automatic) | Manual winding (hand-wound) |
| Caliber | 9R65 | Omega 3861 |
| Price | ||
| Launch MSRP | $7,200 | $6,300 |
| Details | ||
| Accuracy | ±15 seconds per month (±1 second per day) | — |
| Balance spring | — | Silicon |
| Bezel | — | Black anodized aluminium tachymeter insert ('dot over 90') |
| Bracelet | High-Intensity Titanium with folding clasp | Stainless steel five-link, tapering from 20 mm at the lugs to 15 mm at the clasp |
| Case material | High-Intensity Titanium | Stainless steel |
| Chronometer certification | — | METAS Master Chronometer (Co-Axial) |
| Complications | Date window at 3 o'clock; power reserve indicator | — |
| Crystal | Box-shaped sapphire crystal | Hesalite (acrylic) with stamped Omega logo |
| Crystal ar coating | Internal anti-reflective coating on box-shaped sapphire | — |
| Dial color | Soft pink | Black (stepped profile) |
| Frequency vph | — | 21600 |
| Hacking seconds | — | true |
| Jewels | — | 26 |
| Limited edition | false | — |
| Magnetic resistance gauss | — | 15000 |
| Movement jewels | 30 | — |
| Power reserve hours | 72 | 50 |
Sources
Verified · 7 referencesEvery spec on this page was independently checked against the sources below before publishing.