lug2lug
BrowseBrandsCompareDiscussionCommunity WatchesMy Watches
BrowseBrandsCompareDiscussionCommunity WatchesMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Best dress watches·Diver under $5,000·Chronograph under $5,000·Sport under $5,000·GMT under $5,000·Field under $2,000·Best tool watches·Pilot under $2,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·What should I buy?·Value retention rankings·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Now on iPhone
Download on theApp Store
TermsPrivacyCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Browse/Alternatives/Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Finding alternatives to

Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm

Ref. 522.92.44.20.04.001

49 watches that match on case size, movement family, and price band. Sorted by how close the match is.

Case
43.5mm
Movement
Automatic
Category
Diver
MSRP
$10,500
The short answer

The closest alternative to the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm is the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm ($10,000) — shared caliber (Omega 8806) and Same family (Seamaster Diver 300M). If price is the constraint, the Tudor Pelagos FXD at $5,025 (vs $10,500 for the Seamaster Diver 300M Co Axial Master Chronometer 43 5mm) covers most of the same brief. From the independents, the Core Timepieces Original Sin is the standout microbrand take — pro diver and Visually similar. Stepping up, the Omega Seamaster Diver 300M Co Axial Master Chronometer 42mm ($16,600) is where the same idea goes with a bigger budget.

ColourwayPick a colourway to match a specific dial
49 matches
Microbrand picks· 12

Independent makers covering the same brief — usually with something the mainstream brands don't.

Core Timepieces Original Sin
Core Timepiecesmicro
Seven Sins

Original Sin

4 variantsSeries
42mm·Automatic·300m WR
$549MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Limes Leviathan L
Limesmicro

Leviathan L

44.5mm·Automatic·300m WR
—MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Dryden Pathfinder
Drydenmicro

Pathfinder

9 variantsPathfinder
41mm·Automatic·201m WR
$650MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Akrone C-02 Tactik Graphite
Akronemicro

C-02 Tactik Graphite

41mm·Automatic·300m WR
$624MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Kobold NEC 5326 - the Navy SEAL Watch
Koboldmicro

NEC 5326 - the Navy SEAL Watch

43.5mm·Automatic·200m WR
$4,450MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Marloe Watch Company Morar 310 - Ord
Marloe Watch Companymicro

Morar 310 - Ord

42mm·Automatic·310m WR
$499MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Akrone C-02 Tactik Marine
Akronemicro

C-02 Tactik Marine

41mm·Automatic·300m WR
$624MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Ianos Dytis
Ianosmicro

Dytis

3 variantsSeries
41mm·Automatic·300m WR
$2,325MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
WISE Diving 300M
WISEmicro

Diving 300M

4 variantsSeries
44mm·Automatic·300m WR
$610MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Resco UDT Diver - Brushed Titanium
Rescomicro

UDT Diver - Brushed Titanium

9 variantsSeries
42mm·Automatic·300m WR
$1,955MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Core Timepieces The River Watch
Core Timepiecesmicro
River

The River Watch

42mm·Automatic·300m WR
$540MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Borealis Watch Co. Jamanta
Borealis Watch Co.micro

Jamanta

5 variantsJamanta
42.50mm·Automatic·300m WR
$415MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Mainstream picks· 12

Established brands covering the same brief at a comparable price — same case size, similar movement family. Often the deciding click for a new buyer.

Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Omega

Seamaster Diver 300M Co Axial Master Chronometer 43 5mm

4 variantsSeamaster Diver 300M
43.5mm·Automatic·300m WR
$10,000MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Omega Seamaster Diver 300M Co Axial Master Chronometer 42mm
Omega

Seamaster Diver 300M Co Axial Master Chronometer 42mm

25 variantsSeamaster Diver 300M
42mm·Automatic·300m WR
$6,300MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Superocean Heritage B20 Automatic
Breitling

Superocean Heritage B20 Automatic

42/44mm
3 variantsSuperocean Heritage
42/44mm·Automatic·200m WR
$7,250MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Omega Seamaster Diver 300M Co Axial Master Chronometer 42mm
Omega

Seamaster Diver 300M Co Axial Master Chronometer 42mm

8 variantsSeamaster Diver 300M
42mm·Automatic·300m WR
$9,600MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Tudor Pelagos
Tudor

Pelagos

Ref. m25600tb-0001
40mm·Automatic·500m WR
$6,025MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
TAG Heuer Formula 1 Chronograph X Oracle Red Bull Racing
TAG Heuer

Formula 1 Chronograph X Oracle Red Bull Racing

2 variantsFormula 1
44mm·Automatic·200m WR
$5,700MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Super Chronomat B01 44
Breitling
Chronomat

Super Chronomat B01 44

2 variantsChronomat
44mm·Automatic·200m WR
$12,800MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Super Chronomat B01 44
Breitling
Chronomat

Super Chronomat B01 44

5 variantsChronomat
44mm·Automatic·200m WR
$13,250MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Tudor Pelagos LHD
Tudor

Pelagos LHD

Ref. m25610tnl-0001
40mm·Automatic·500m WR
$6,025MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Tudor Pelagos Ultra
Tudor

Pelagos Ultra

Ref. m2543c1a7nu-0001
40mm·Automatic·1000m WR
$6,900MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Blancpain Bathyscaphe Chronographe Flyback
Blancpain
Fifty Fathoms

Bathyscaphe Chronographe Flyback

Ref. 5200-1210-G52A
43mm·Automatic·300m WR
$20,800MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Blancpain Fifty Fathoms Automatique
Blancpain

Fifty Fathoms Automatique

Ref. 5015-12B30-NABA
45mm·Automatic·300m WR
$20,700MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Cheaper alternatives· 12

If the price is the only thing keeping you off this watch, these get you most of the way there for less.

Tudor Pelagos FXD
Tudor

Pelagos FXD

Ref. m25707b-0001
42mm·Automatic·200m WR
$5,025MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Bremont S502
Bremont
Supermarine

S502

3 variantsSupermarine
43mm·Automatic·500m WR
$5,100MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Avenger Automatic
Breitling

Avenger Automatic

42/43mm
6 variantsAvenger
42/43mm·Automatic·300m WR
$4,900MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Sinn U1 S L
Sinn

U1 S L

4 variantsU1
44mm·Automatic·1000m WR
$3,532MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Bremont S300
Bremont
Supermarine

S300

7 variantsSupermarine
40mm·Automatic·300m WR
$3,795MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Linde Werdelin Biformeter Elemental – Black Dial
Linde Werdelin

Biformeter Elemental – Black Dial

44mm·Automatic·300m WR
$5,206MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Fortis Marinemaster M-40
Fortis

Marinemaster M-40

8 variantsMarinemaster
40mm·Automatic·300m WR
$3,520MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Avenger Automatic 42 America250
Breitling

Avenger Automatic 42 America250

42mm·Automatic·300m WR
$5,100MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Avenger Automatic GMT
Breitling

Avenger Automatic GMT

43/44/45mm
5 variantsAvenger
43/44/45mm·Automatic·300m WR
$4,800MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Seiko Prospex Sea
Seiko

Prospex Sea

4 variantsProspex Sea
43.5mm·Automatic·200m WR
$1,500MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Bremont Supermarine 500M
Bremont

Supermarine 500M

7 variantsSupermarine
43mm·Automatic·500m WR
$4,700MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
DOXA SUB 300
DOXA

SUB 300

8 variantsSUB 300
42.5mm·Automatic·300m WR
$2,890MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Pricier alternatives· 12

Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.

Omega Seamaster Diver 300M Co Axial Master Chronometer 42mm
Omega

Seamaster Diver 300M Co Axial Master Chronometer 42mm

8 variantsSeamaster Diver 300M
42mm·Automatic·300m WR
$16,600MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Omega Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm
Omega

Seamaster Diver 300M Co Axial Master Chronometer Chronograph 44mm

2 variantsSeamaster Diver 300M
44mm·Automatic·300m WR
$27,300MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Tudor Black Bay
Tudor

Black Bay

Ref. m79230g-0001
41mm·Automatic·200m WR
—MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Superocean Heritage B20 Automatic
Breitling

Superocean Heritage B20 Automatic

Ref. RB2010121B1S1
42mm·Automatic·200m WR
$22,650MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
TAG Heuer Carrera Chronograph Tourbillon Extreme Sport
TAG Heuer

Carrera Chronograph Tourbillon Extreme Sport

Ref. CBU5050.FT6273
44mm·Automatic·100m WR
$46,250MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Blancpain Bathyscaphe Chronographe Flyback
Blancpain
Fifty Fathoms

Bathyscaphe Chronographe Flyback

Ref. 5200-1210-98S
43mm·Automatic·300m WR
$24,100MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Premier B25 Datora 42
Breitling

Premier B25 Datora 42

Ref. RB2510371G1P1
42mm·Automatic·100m WR
$32,900MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Blancpain Bathyscaphe Quantième Complet Phases de Lune
Blancpain
Fifty Fathoms

Bathyscaphe Quantième Complet Phases de Lune

Ref. 5054-1210-98S
43mm·Automatic·300m WR
$24,100MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Superocean Automatic
Breitling

Superocean Automatic

Ref. R17375211B1S1
42mm·Automatic·300m WR
$25,400MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Rolex Yacht-Master II
Rolex

Yacht-Master II

Ref. 126688
44mm·Automatic·100m WR
$60,700MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Blancpain Bathyscaphe Quantième Complet Phases de Lune
Blancpain
Fifty Fathoms

Bathyscaphe Quantième Complet Phases de Lune

Ref. 5054-1110-70B
43mm·Automatic·300m WR
$22,800MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Audemars Piguet Royal Oak Offshore Diver 42mm
Audemars Piguet

Royal Oak Offshore Diver 42mm

Ref. 15710ST.OO.A085CA.01
42mm·Automatic·300m WR
—MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Homages & lookalikes· 1

Watches that share this design language — confirmed homages, close tributes, and lookalikes, including the classics that inspired the look. Hidden when nothing in the catalog is related.

San Martin San Martin Watchdives X 38mm Chronometer Automatic SN0113W V
San Martinhomage

San Martin Watchdives X 38mm Chronometer Automatic SN0113W V

5 variantsSeries
38mm·Automatic·100m WR
$238MSRP
—Used
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
← Back to the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mmBest Diver Watches Under $5,000 →Open the alternatives engine