124 current Omega references are automatics. These are the strongest on published specs.
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How we picked
Each watch earns points from published specs only: sapphire crystal (2), water resistance of 200 m or ISO 6425 diver certification (2; 100 m earns 1), screw-down crown (1), power reserve of 70 hours or more (1), display caseback (0.5), hacking plus hand-winding (0.5) and lug-to-lug of 47 mm or less (0.5). We rank by points, then by lower US list price. Near-identical colourways are grouped and we show the lowest-priced one. We cap each model family at two picks so the list isn't one watch in six colours.
The Omega 210.32.42.20.01.001 is a diver watch from the Seamaster collection, part of the Diver 300M family. It has a 42 mm stainless steel case, 13.56 mm thick, 49.9 mm from lug to lug. Omega lists the dial as black. Inside is an automatic movement (calibre Omega 8800) with 55 h of power reserve. You also get 300 m water resistance, a sapphire crystal and a rubber strap.
Good for: Wrists of roughly 16.9–18.7 cm (6.6–7.4 in), by our Watch Finder sizing guide; Swimming, snorkelling and diving; People who enjoy seeing a mechanical movement at work.
Why it's here
Sapphire crystal resists scratches
300 m water resistance
Screw-down crown helps keep water out
Display caseback shows the movement
Trade-offs
None stood out in the published specs
Full specs and fit checkSearch AmazonUS list price $6,300 (US list) (brand site, checked 3 Nov 2026). Omega listings on Amazon usually come from third-party sellers, not the brand. Check who the seller is and what warranty you get before you buy. Amazon links are paid links.
The Omega 234.30.41.21.01.001 is a diver watch from the Seamaster collection, part of the Seamaster 300 family. It has a 41 mm stainless steel case, 13.85 mm thick, 48 mm from lug to lug. Omega lists the dial as black. Inside is an automatic movement (calibre Omega 8912) with 60 h of power reserve. You also get 300 m water resistance, a sapphire crystal and a bracelet.
Good for: Wrists of roughly 16.4–18.3 cm (6.4–7.2 in), by our Watch Finder sizing guide; Swimming, snorkelling and diving; People who enjoy seeing a mechanical movement at work.
Full specs and fit checkSearch AmazonUS list price $8,000 (US list) (brand site, checked 3 Nov 2026). Omega listings on Amazon usually come from third-party sellers, not the brand. Check who the seller is and what warranty you get before you buy. Amazon links are paid links.
The Omega 227.32.55.21.03.001 is a diver watch from the Seamaster collection, part of the Ploprof family. It has a 55 mm stainless steel case, 15.5 mm thick, 45 mm from lug to lug. Omega lists the dial as blue. Inside is an automatic movement (calibre Omega 8912) with 60 h of power reserve. You also get 1200 m water resistance, a sapphire crystal and a rubber strap.
Good for: Wrists of roughly 22.3–24.3 cm (8.8–9.5 in), by our Watch Finder sizing guide; Swimming, snorkelling and diving.
Why it's here
Sapphire crystal resists scratches
1200 m water resistance
Screw-down crown helps keep water out
Compact 45 mm lug-to-lug suits smaller wrists
Trade-offs
Thick at 15.5 mm: harder to slide under a cuff
Heavy at 182 g
Full specs and fit checkSearch AmazonUS list price $16,100 (US list) (brand site, checked 3 Nov 2026). Omega listings on Amazon usually come from third-party sellers, not the brand. Check who the seller is and what warranty you get before you buy. Amazon links are paid links.
The Omega 215.92.46.22.01.006 is a diver watch from the Seamaster collection, part of the Planet Ocean family. It has a 45.5 mm ceramic case, 17.38 mm thick, 51.5 mm from lug to lug. Omega lists the dial as black. Inside is an automatic movement (calibre Omega 8938) with 60 h of power reserve. You also get 600 m water resistance, a sapphire crystal and a rubber strap.
Good for: Wrists of roughly 18.3–20.2 cm (7.2–8.0 in), by our Watch Finder sizing guide; Swimming, snorkelling and diving; Frequent travellers who track two time zones.
Why it's here
Sapphire crystal resists scratches
600 m water resistance
Screw-down crown helps keep water out
Display caseback shows the movement
Trade-offs
Thick at 17.38 mm: harder to slide under a cuff
Long 51.5 mm lug-to-lug can overhang smaller wrists
Full specs and fit checkSearch AmazonUS list price $16,700 (US list) (brand site, checked 3 Nov 2026). Omega listings on Amazon usually come from third-party sellers, not the brand. Check who the seller is and what warranty you get before you buy. Amazon links are paid links.
The Omega 234.63.41.21.99.001 is a diver watch from the Seamaster collection, part of the Seamaster 300 family. It has a 41 mm gold case, 14.65 mm thick, 48 mm from lug to lug. Omega lists the dial as green. Inside is an automatic movement (calibre Omega 8913) with 60 h of power reserve. You also get 300 m water resistance, a sapphire crystal and a bracelet.
Good for: Wrists of roughly 16.4–18.3 cm (6.4–7.2 in), by our Watch Finder sizing guide; Swimming, snorkelling and diving; People who enjoy seeing a mechanical movement at work.
Full specs and fit checkSearch AmazonUS list price $40,600 (US list) (brand site, checked 3 Nov 2026). Omega listings on Amazon usually come from third-party sellers, not the brand. Check who the seller is and what warranty you get before you buy. Amazon links are paid links.
The Omega 235.12.38.20.06.001 is a sports watch from the Seamaster collection, part of the Railmaster family. It has a 38 mm stainless steel case, 12.36 mm thick, 44.92 mm from lug to lug. Omega lists the dial as grey. Inside is an automatic movement (calibre Omega 8806) with 55 h of power reserve. You also get 150 m water resistance, a sapphire crystal and a leather strap.
Good for: Wrists of roughly 15.1–17.0 cm (6.0–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming; People who enjoy seeing a mechanical movement at work.
Full specs and fit checkSearch AmazonUS list price $5,800 (US list) (brand site, checked 3 Nov 2026). Omega listings on Amazon usually come from third-party sellers, not the brand. Check who the seller is and what warranty you get before you buy. Amazon links are paid links.
The Omega 220.10.38.20.03.003 is a sports watch from the Seamaster collection, part of the Aqua Terra family. It has a 38 mm stainless steel case, 12.26 mm thick, 44.92 mm from lug to lug. Omega lists the dial as atlantic blue. Inside is an automatic movement (calibre Omega 8800) with 55 h of power reserve. You also get 150 m water resistance, a sapphire crystal and a bracelet.
Good for: Wrists of roughly 15.1–17.0 cm (6.0–6.7 in), by our Watch Finder sizing guide; Everyday wear including swimming; People who enjoy seeing a mechanical movement at work.
Why it's here
Sapphire crystal resists scratches
Screw-down crown helps keep water out
Compact 44.92 mm lug-to-lug suits smaller wrists
Display caseback shows the movement
Trade-offs
None stood out in the published specs
Full specs and fit checkSearch AmazonUS list price $7,400 (US list) (brand site, checked 3 Nov 2026). Omega listings on Amazon usually come from third-party sellers, not the brand. Check who the seller is and what warranty you get before you buy. Amazon links are paid links.
The Omega 217.32.42.21.01.001 is a diver watch from the Seamaster collection, part of the Planet Ocean family. It has a 42 mm stainless steel case, 13.79 mm thick, 47.5 mm from lug to lug. Omega lists the dial as black. Inside is an automatic movement (calibre Omega 8912) with 60 h of power reserve. You also get 600 m water resistance, a sapphire crystal and a rubber strap.
Good for: Wrists of roughly 16.8–18.7 cm (6.6–7.4 in), by our Watch Finder sizing guide; Swimming, snorkelling and diving.
Full specs and fit checkSearch AmazonUS list price $8,600 (US list) (brand site, checked 3 Nov 2026). Omega listings on Amazon usually come from third-party sellers, not the brand. Check who the seller is and what warranty you get before you buy. Amazon links are paid links.
Questions
Which is the cheapest watch in this guide?
The Omega Railmaster 235.12.38.20.06.001, at a US list price of $5,800 when we checked.
How did you choose these watches?
We ranked them on published specs only, using the scoring rules on this page. We haven't reviewed or worn these watches for this guide, and no brand or retailer paid to be included.
Which of these can I swim with?
Omega Diver 300M 210.32.42.20.01.001, Omega Seamaster 300 234.30.41.21.01.001, Omega Ploprof 227.32.55.21.03.001, Omega Planet Ocean 215.92.46.22.01.006, Omega Seamaster 300 234.63.41.21.99.001, Omega Railmaster 235.12.38.20.06.001 are rated to 100 m or more.
Do you earn money from these links?
Amazon links are paid links: as an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Links to brand sites and eBay are not affiliate links.
