Momentum
Sea Auto 30
- $585 recorded MSRP, $1,105 lower
- Same 42 mm case diameter
- 47 mm lug-to-lug, 2 mm longer
What changes
Compare models 0.6 mm thicker case
Watch alternatives
Alternatives to the Synchron Poseidon Black Edition – Duplicate
Keep what you like. Explore what could be different. Compare 48 catalog matches by dimensions, movement and price.
- Case diameter
- 42 mm
- Lug-to-lug
- 45 mm
- Movement
- Automatic
- Catalog MSRP
- $1,690
The starting pointStarting points
Choose the differences that matter to you.
Closest catalog matchMomentum Sea Auto 30$585 recorded MSRP, $1,105 lowerSee the match Lower recorded MSRPSynchron Poseidon Ice Diver$1,290 recorded MSRP, $400 lowerSee the match Shorter lug-to-lugMarathon OSAR-D (Original SAR with Date) Automatic 41mm43.5 mm lug-to-lug, 1.5 mm shorterSee the match
Calculated from catalog specifications and similarity signals. Prices are recorded MSRP in USD. Missing measurements stay unknown.
Your priorities
Narrow these matches without leaving the page.
48 matches
Microbrand picks· 12
Discover smaller makers with catalog similarities to this watch.
Synchron
Poseidon Ice Diver
- $1,290 recorded MSRP, $400 lower
- Same 42 mm case diameter
- Same La Joux-Perret G100 caliber
What changes
Compare models 0.5 mm thicker case
Synchron
Poseidon
- $1,390 recorded MSRP, $300 lower
- 41 mm case, 1 mm narrower
- Same La Joux-Perret G100 caliber
What changes
Compare models Dimensions alone do not establish wrist fit.
Archimede Watches
SportTaucher diver 41mm 3-hand (rotating dive bezel)
- $1,020 recorded MSRP, $670 lower
- 41 mm case, 1 mm narrower
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Synchron
Sealab Ti300M
- 41 mm case, 1 mm narrower
- Same La Joux-Perret G100 caliber
What changes
Compare models MSRP is not recorded for this match.
Aquatico
43mm Bronze Pilot
- $359 recorded MSRP, $1,331 lower
- 43 mm case, 1 mm wider
- Both use automatic movements
What changes
Compare models 0.5 mm thicker case
Audaz
ADZ-2070
- $450 recorded MSRP, $1,240 lower
- Same 42 mm case diameter
- 51 mm lug-to-lug, 6 mm longer
What changes
Compare models 4 mm thicker case
Méraud
Bonaire
- $1,090 recorded MSRP, $600 lower
- 40 mm case, 2 mm narrower
- 48.6 mm lug-to-lug, 3.6 mm longer
What changes
Compare models 0.2 mm thicker case
Sangin Instruments
Hydra II
- 43 mm case, 1 mm wider
- Same La Joux-Perret G100 caliber
What changes
Compare models $1,795 recorded MSRP, $105 higher
Spinnaker
Fleuss Pearl Diver Nessie
- $425 recorded MSRP, $1,265 lower
- 43 mm case, 1 mm wider
- 51 mm lug-to-lug, 6 mm longer
What changes
Compare models 1 mm thicker case
Astor + Banks
Sea Ranger M2
- $1,299 recorded MSRP, $391 lower
- 40 mm case, 2 mm narrower
- 45.5 mm lug-to-lug, 0.5 mm longer
What changes
Compare models 0.5 mm thicker case
Circula Watches
AquaSport GMT
- $1,490 recorded MSRP, $200 lower
- 40 mm case, 2 mm narrower
- 46 mm lug-to-lug, 1 mm longer
What changes
Compare models 0.6 mm thicker case
Mainstream picks· 12
Established-brand matches. Compare the recorded dimensions, movement and price for each watch.
Marathon
OSAR-D (Original SAR with Date) Automatic 41mm
- 41 mm case, 1 mm narrower
- 43.5 mm lug-to-lug, 1.5 mm shorter
- Both use automatic movements
What changes
Compare models 1 mm thicker case. $1,800 recorded MSRP, $110 higher
Christopher Ward
C60 Pro 300
- $1,550 recorded MSRP, $140 lower
- Same 42 mm case diameter
- 49.3 mm lug-to-lug, 4.3 mm longer
What changes
Compare models 0.5 mm thinner case
Seiko
HBC011J1
- $1,400 recorded MSRP, $290 lower
- 40 mm case, 2 mm narrower
- 46.4 mm lug-to-lug, 1.4 mm longer
What changes
Compare models 1 mm thicker case
Christopher Ward
C60 #tide
- $1,575 recorded MSRP, $115 lower
- Same 42 mm case diameter
- 49.3 mm lug-to-lug, 4.3 mm longer
What changes
Compare models 2.1 mm thicker case
Christopher Ward
C60 Trident Reef
- $995 recorded MSRP, $695 lower
- 41 mm case, 1 mm narrower
- 47.9 mm lug-to-lug, 2.9 mm longer
What changes
Compare models 0.6 mm thinner case
Marathon
Jeep Rubicon GSAR
- 41 mm case, 1 mm narrower
- 48 mm lug-to-lug, 3 mm longer
- Both use automatic movements
What changes
Compare models 2 mm thicker case. $2,100 recorded MSRP, $410 higher
Marathon
Jeep Rubicon TSAR
- $1,650 recorded MSRP, $40 lower
- 41 mm case, 1 mm narrower
- 48 mm lug-to-lug, 3 mm longer
What changes
Compare models 2 mm thicker case
Yema
Diver
- $990 recorded MSRP, $700 lower
- 39.5 mm case, 2.5 mm narrower
- Both use automatic movements
What changes
Compare models 1.1 mm thinner case
Longines
HydroConquest
- 43 mm case, 1 mm wider
- 53.5 mm lug-to-lug, 8.5 mm longer
- Both use automatic movements
What changes
Compare models $2,000 recorded MSRP, $310 higher
Longines
HydroConquest GMT
- 43 mm case, 1 mm wider
- 52 mm lug-to-lug, 7 mm longer
- Both use automatic movements
What changes
Compare models 0.9 mm thicker case. $3,350 recorded MSRP, $1,660 higher
Longines
HydroConquest Mesh
- 41 mm case, 1 mm narrower
- 51.1 mm lug-to-lug, 6.1 mm longer
- Both use automatic movements
What changes
Compare models $2,350 recorded MSRP, $660 higher
Seiko
Captain Willard
- $1,300 recorded MSRP, $390 lower
- 42.7 mm case, 0.7 mm wider
- 46.6 mm lug-to-lug, 1.6 mm longer
What changes
Compare models 1.2 mm thicker case
Cheaper alternatives· 12
Matches in a lower price band. A recorded MSRP difference is shown only when both prices are known.
Glycine
Airman Double Twelve
- $590 recorded MSRP, $1,100 lower
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Glycine
Combat Sub
- $515 recorded MSRP, $1,175 lower
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Glycine
Combat Sub
- $515 recorded MSRP, $1,175 lower
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Seiko
Prospex Alpinist
- $503 recorded MSRP, $1,187 lower
- 38 mm case, 4 mm narrower
- 46 mm lug-to-lug, 1 mm longer
What changes
Compare models 0.9 mm thicker case
Seiko
Prospex Sea
- $625 recorded MSRP, $1,065 lower
- 43.8 mm case, 1.8 mm wider
- 48.7 mm lug-to-lug, 3.7 mm longer
What changes
Compare models 0.8 mm thicker case
Orient Star
Diver
- $585 recorded MSRP, $1,105 lower
- 43.6 mm case, 1.6 mm wider
- 51.1 mm lug-to-lug, 6.1 mm longer
What changes
Compare models 2 mm thicker case
Yema
Pearldiver
- $491 recorded MSRP, $1,199 lower
- 38 mm case, 4 mm narrower
- 46 mm lug-to-lug, 1 mm longer
What changes
Compare models 2 mm thicker case
Timex
Expedition Pioneer 41mm
- $429 recorded MSRP, $1,261 lower
- 41 mm case, 1 mm narrower
- Both use automatic movements
What changes
Lug-to-lug is not recorded for this match.
Seiko
Prospex Sea
- Same 42 mm case diameter
- 48.6 mm lug-to-lug, 3.6 mm longer
- Both use automatic movements
What changes
Compare models 1.3 mm thicker case
Bulova
Marine Star
- $550 recorded MSRP, $1,140 lower
- 41 mm case, 1 mm narrower
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Orient
75th Anniversary RA-TX0210L10B
- $375 recorded MSRP, $1,315 lower
- 42.8 mm case, 0.8 mm wider
- 48.1 mm lug-to-lug, 3.1 mm longer
What changes
Compare models 1.1 mm thicker case
Timex
Deepwater Meridian 200 GMT
- $549 recorded MSRP, $1,141 lower
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Pricier alternatives· 12
Matches in a higher price band. Check the specifications to decide whether the differences matter to you.
Omega
Seamaster Planet Ocean 600M Co Axial Master Chronometer 42mm
- Same 42 mm case diameter
- 47.5 mm lug-to-lug, 2.5 mm longer
- Both use automatic movements
What changes
Compare models 1.8 mm thicker case. $8,600 recorded MSRP, $6,910 higher
Omega
Seamaster Diver 300M Co Axial Master Chronometer 42mm
- Same 42 mm case diameter
- 49.9 mm lug-to-lug, 4.9 mm longer
- Both use automatic movements
What changes
Compare models 1.6 mm thicker case. $6,300 recorded MSRP, $4,610 higher
Jaeger-LeCoultre
Polaris Date Stainless Steel
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models 1.9 mm thicker case. $11,100 recorded MSRP, $9,410 higher
Breitling
Avenger Automatic
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models 0.2 mm thicker case. $4,900 recorded MSRP, $3,210 higher
Breitling
Superocean Heritage B31 Automatic
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models $6,500 recorded MSRP, $4,810 higher
Breitling
Superocean Heritage B31 Automatic
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models $8,050 recorded MSRP, $6,360 higher
Bremont
S302
- 40 mm case, 2 mm narrower
- Both use automatic movements
What changes
Compare models 1 mm thicker case. $3,900 recorded MSRP, $2,210 higher
Bremont
Supermarine 300M
- 40 mm case, 2 mm narrower
- Both use automatic movements
What changes
Compare models $3,550 recorded MSRP, $1,860 higher
NOMOS Glashütte
Tangente Sport neomatik 42 date marine black
- Same 42 mm case diameter
- 52.6 mm lug-to-lug, 7.6 mm longer
- Both use automatic movements
What changes
Compare models 1.1 mm thinner case. $6,030 recorded MSRP, $4,340 higher
Omega
Seamaster James Bond Edition
- Same 42 mm case diameter
- 50 mm lug-to-lug, 5 mm longer
- Both use automatic movements
What changes
Compare models 2.2 mm thicker case. $8,600 recorded MSRP, $6,910 higher
Rolex
Submariner
- 41 mm case, 1 mm narrower
- Both use automatic movements
What changes
Compare models $10,050 recorded MSRP, $8,360 higher
Yema
Superman Tourbillon CMM.31 Limited Edition
- 43 mm case, 1 mm wider
- Both use automatic movements
What changes
Compare models 0.3 mm thinner case. $13,000 recorded MSRP, $11,310 higher
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