OMEGA’s 42 mm Seamaster Diver 300M in Moonshine Gold and Sedna Gold shares its reported calibre 8801 movement and 300 m water-resistance rating, but the two references take very different visual approaches: black ceramic and yellow-toned gold for the Moonshine model, white ceramic and rose-toned gold for the Sedna.
The references are 210.62.42.20.01.003 (Moonshine Gold) and 210.52.42.20.04.001 (Sedna Gold). OMEGA Hong Kong’s catalog lists them at HKD 245,300 and HKD 249,800 respectively; those are local catalog prices, not global quotes.
How the two gold Seamaster Diver 300M models differ
| Detail | Moonshine Gold 210.62.42.20.01.003 | Sedna Gold 210.52.42.20.04.001 |
|---|---|---|
| Gold | 18K Moonshine Gold, OMEGA’s yellow-gold alloy, according to Monochrome. | 18K Sedna Gold, OMEGA’s rose-gold alloy, according to Monochrome. |
| Bezel and dial | Black ceramic bezel and polished black ceramic dial with wave pattern. | Gold bezel with textured background and raised diving scale; polished white ceramic dial with wave pattern. |
| Strap | Black rubber. | Brown rubber. |
| Movement and reported water resistance | Calibre 8801; 300 m. | Calibre 8801; 300 m. |
| Hong Kong catalog price | HKD 245,300, listed by OMEGA Hong Kong. | HKD 249,800, listed by OMEGA Hong Kong. |
| Euro price reported in 2025 | EUR 32,200 in Monochrome’s August 12, 2025 article; an article-era figure, not a current universal quote. | EUR 32,900 in Monochrome’s August 12, 2025 article; an article-era figure, not a current universal quote. |
OMEGA describes Moonshine Gold as its yellow-gold alloy and Sedna Gold as its rose-gold alloy in Monochrome’s August 12, 2025 coverage. In practical terms, the Moonshine reference pairs a darker, higher-contrast face with a black strap; the Sedna reference sets a light dial and brown strap against warmer gold.
Shared case and dive specifications
Monochrome reports both watches at 42 mm in diameter, 13.72 mm thick and 49.93 mm from lug to lug. The reported construction and dive features are:
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match#1 Best Overall
- Omega Seamaster Automatic Chronometer Black Dial Men's Watch 210.30.42.20.01.001
- Sapphire crystal
- Screw-in crown and helium escape valve
- Transparent screwed caseback
- Water resistance of 300 m
These measurements and specifications are attributed to Monochrome’s report; the cited OMEGA catalog listing confirms the model names, references, sizes and Hong Kong prices, but not a model-specific technical sheet for these exact references.
Calibre 8801: the movement reported in both watches
Monochrome identifies the movement in both references as OMEGA calibre 8801, an automatic Master Chronometer-certified calibre. Its reported specifications are:
Rank #2
- Model 212.30.44.52.01.001
- 35 jewels
- 55-hour power reserve
- 25,200 vibrations per hour
- Silicon balance spring
- Magnetic resistance up to 15,000 gauss
The report also notes a gold balance bridge and rotor. These movement details come from Monochrome’s August 2025 article rather than the cited Hong Kong catalog.
Prices and availability depend on market and date
For Hong Kong, OMEGA’s catalog lists the Moonshine Gold reference at HKD 245,300 and the Sedna Gold reference at HKD 249,800. The figures are catalog prices observed for that market and may change; check the OMEGA Hong Kong listings for current local pricing.
Rank #3
- Omega Seamaster Automatic Black Dial Men's Watch 210.32.42.20.01.001
Monochrome reported EUR 32,200 for the Moonshine Gold model and EUR 32,900 for the Sedna Gold model, and described both as immediately available and not limited editions when its article was published on August 12, 2025. Those euro prices and availability statements are dated, and do not establish current stock or pricing in other countries.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which reference makes more sense for you?
Choose Moonshine Gold for a dark, uniform look
The Moonshine reference is the more understated pairing of the two in color: yellow-toned gold is set against a black ceramic bezel, black wave dial and black rubber strap. Its HKD 245,300 Hong Kong catalog price is HKD 4,500 below the Sedna model’s listed price.
Rank #4
- Model 210.90.42.20.01.001
Choose Sedna Gold for warmer contrast
The Sedna reference brings together rose-toned gold, a white wave dial and a brown rubber strap. Its bezel treatment is also distinct: a textured gold background supports a raised diving scale rather than the Moonshine model’s black ceramic bezel.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
