lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

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

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

Ref. 210.92.44.20.01.001

50 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
$10,000
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 42mm ($6,300) — same family (Seamaster Diver 300M) and Pro diver. If price is the constraint, the Breitling Avenger Automatic at $4,900 (vs $10,000 for the Seamaster Diver 300M Co Axial Master Chronometer 43 5mm) covers most of the same brief. From the independents, the ZRC 1904 MN64 -Metal is the standout microbrand take — pro diver and Looks nearly identical. 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 colorway to match a specific dial
50 matches

Microbrand picks· 12

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

ZRC 1904 MN64 -Metal
ZRC 1904micro

MN64 -Metal

2 variants
41.5mm·Automatic·1000m WR
$3,690MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Aera Instruments D-1
Aera Instrumentsmicro

D-1

3 variants
44mm·Automatic·300m WR
$2,675MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Aquastar Benthos Professional
Aquastarmicro

Benthos Professional

2 variants
42mm·Automatic·300m WR
$1,590MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Bamford of London D-300 Gloss Navy White Ceramic
Bamford of Londonmicro

D-300 Gloss Navy White Ceramic

7 variants
42mm·Automatic·300m WR
$1,800MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Orient Star Diver
Orient Star

Diver

3 variants · Sports
43.6mm·Automatic·200m WR
$585MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Audaz Audaz Sea Ranger ADZ-2050
Audazmicro
Sea Ranger

Audaz Sea Ranger ADZ-2050

3 variants
42mm·Automatic·200m WR
$375MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Elliot Brown HOLTON AUTOMATIC: 101-A10
Elliot Brownmicro

HOLTON AUTOMATIC: 101-A10

6 variants
43mm·Automatic·200m WR
$792MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Haigh & Hastings M2
Haigh & Hastingsmicro

M2

 
44mm·Automatic·300m WR
$292MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
S.U.F Helsinki Vetehinen
S.U.F Helsinkimicro

Vetehinen

7 variants
42mm·Automatic·300m WR
$4,391MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Seagull Ocean Series Pro "Dragon Kings of the Four Seas" Dragon-scale Dial 300m Waterproof Diving Watch 44mm
Seagullmicro
Dive Watch

Ocean Series Pro "Dragon Kings of the Four Seas" Dragon-scale Dial 300m Waterproof Diving Watch 44mm

4 variants
44mm·Automatic·300m WR
$643MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Audaz ADZ-4020
Audazmicro

ADZ-4020

4 variants
42mm·Automatic·200m WR
$700MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Audaz Ocean Raider
Audazmicro

Ocean Raider

3 variants
45mm·Automatic·300m WR
$400MSRP
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 42mm
Omega

Seamaster Diver 300M Co Axial Master Chronometer 42mm

25 variants · Seamaster Diver 300M
42mm·Automatic·300m WR
$6,300MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Omega

Seamaster Diver 300M Co Axial Master Chronometer 43 5mm

2 variants · Seamaster Diver 300M
43.5mm·Automatic·300m WR
$10,500MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Superocean Automatic
Breitling

Superocean Automatic

20 variants · Superocean
36/42/44/46mm·Automatic·300m WR
$5,700MSRP
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

4 variants · Seamaster Diver 300M
44mm·Automatic·300m WR
$9,200MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Superocean Heritage B20 Automatic
Breitling

Superocean Heritage B20 Automatic

8 variants · Superocean Heritage
42/44/46mm·Automatic·200m WR
$5,800MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Superocean Automatic 46 Super Diver
Breitling

Superocean Automatic 46 Super Diver

3 variants · Superocean
46mm·Automatic·1000m WR
$6,900MSRP
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
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Bremont S502
Bremont
Supermarine

S502

3 variants · Supermarine
43mm·Automatic·500m WR
$5,100MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Rolex Rolex Deepsea
Rolex
Deepsea

Rolex Deepsea

2 variants · Deepsea
44mm·Automatic·3900m WR
$15,550MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Fortis Marinemaster M-44 DLC
Fortis

Marinemaster M-44 DLC

2 variants · Marinemaster
44mm·Automatic·300m WR
$5,450MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Rolex Submariner
Rolex

Submariner

Ref. 124060
41mm·Automatic·300m WR
$10,050MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Yema Superman Tourbillon CMM.31 Limited Edition
Yema

Superman Tourbillon CMM.31 Limited Edition

 
43mm·Automatic·300m WR
$13,000MSRP
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.

Breitling Avenger Automatic
Breitling

Avenger Automatic

6 variants · Avenger
42/43mm·Automatic·300m WR
$4,900MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch
Seiko

Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

2 variants · Prospex Marinemaster
42.6mm·Automatic·300m WR
$2,900MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Bremont Supermarine 500M
Bremont

Supermarine 500M

7 variants · Supermarine
43mm·Automatic·500m WR
$4,700MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Superocean Automatic 42
Breitling

Superocean Automatic 42

Ref. A17366021B1A1
42mm·Automatic·500m WR
$4,950MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Bremont Supermarine 300M
Bremont

Supermarine 300M

8 variants · Supermarine
40mm·Automatic·300m WR
$3,550MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Orient Sports Diver
Orient

Sports Diver

4 variants
43.6mm·Automatic·100m WR
$745MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch
Seiko

Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

 
42.6mm·Automatic·300m WR
$3,600MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Marathon OSAR-D (Original SAR with Date) Automatic 41mm
Marathon

OSAR-D (Original SAR with Date) Automatic 41mm

 
41mm·Automatic·300m WR
$1,800MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Tissot Seastar 1000
Tissot

Seastar 1000

7 variants
40/43mm·Automatic·300m WR
$875MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Bremont S302
Bremont
Supermarine

S302

6 variants · Supermarine
40mm·Automatic·300m WR
$3,900MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Movado SE Diver
Movadomicro

SE Diver

2 variants · Ref. 0607819
43mm·Automatic·200m WR
$2,495MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition
Seiko

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

 
44mm·Automatic·200m WR
$3,300MSRP
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 variants · Seamaster Diver 300M
42mm·Automatic·300m WR
$16,600MSRP
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

3 variants · Fifty Fathoms
43.6mm·Automatic·300m WR
$31,700MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Blancpain Bathyscaphe Chronographe Flyback
Blancpain
Fifty Fathoms

Bathyscaphe Chronographe Flyback

3 variants · Fifty Fathoms
43.6mm·Automatic·300m WR
$31,700MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Blancpain Bathyscaphe Chronographe Flyback Ocean Commitment II
Blancpain
Fifty Fathoms

Bathyscaphe Chronographe Flyback Ocean Commitment II

2 variants · Fifty Fathoms
43.6mm·Automatic·300m WR
$26,400MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Tudor Black Bay 68
Tudor

Black Bay 68

2 variants
43mm·Automatic·200m WR
—MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Tudor Pelagos
Tudor

Pelagos

2 variants
42mm·Automatic·500m WR
—MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Tudor Pelagos LHD
Tudor

Pelagos LHD

 
42mm·Automatic·500m WR
—MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Breitling Colt Automatic
Breitling

Colt Automatic

 
44mm·Automatic·200m WR
—MSRP
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 variants · Chronomat
44mm·Automatic·200m WR
$13,250MSRP
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
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
TAG Heuer Aquaracer Calibre 5
TAG Heuer

Aquaracer Calibre 5

 
41mm·Automatic·300m WR
—MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Linde Werdelin Oktopus Moon 3DTP White Black Ink
Linde Werdelin

Oktopus Moon 3DTP White Black Ink

 
44mm·Automatic·300m WR
$25,397MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm

Homages & lookalikes· 2

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.

Addiesdive AddiesKIN K002 “Urban Mechanica” Automatic 9015 Men’s Watch
Addiesdivehomage

AddiesKIN K002 “Urban Mechanica” Automatic 9015 Men’s Watch

4 variants
40mm·Automatic·100m WR
$300MSRP
vsCompare with the Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
San Martin San Martin Watchdives X 38mm Chronometer Automatic SN0113W V
San Martinhomage

San Martin Watchdives X 38mm Chronometer Automatic SN0113W V

5 variants
38mm·Automatic·100m WR
$238MSRP
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 $500 →Open the alternatives engine