Formex
Reef 39.5 mm
- 39.5 mm case, 2.5 mm narrower
- 45.5 mm lug-to-lug, 1.5 mm shorter
- Same Sellita SW300-1 caliber
What changes
Compare models 0.4 mm thinner case
Watch alternatives
Alternatives to the Formex Reef 42 mm
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
- 47 mm
- Movement
- Automatic
- Catalog MSRP
- $2,414
The starting pointStarting points
Choose the differences that matter to you.
Closest catalog matchFormex Reef 39.5 mm39.5 mm case, 2.5 mm narrowerSee the match Lower recorded MSRPSerket Watch Co Reef X Diver$499 recorded MSRP, $1,915 lowerSee the match Shorter lug-to-lugTissot Seastar 100043 mm lug-to-lug, 4 mm shorterSee the match
Calculated from catalog specifications and similarity signals. Prices are recorded MSRP in USD, not current retail offers. Missing measurements stay unknown.
Your priorities
Narrow these matches without leaving the page.
ColorwayPick a colorway to match a specific dial
48 matches
Microbrand picks· 12
Discover smaller makers with catalog similarities to this watch.
ZRC 1904
HETERIUM -METAL
- 41.5 mm case, 0.5 mm narrower
- Same Sellita SW300-1 caliber
What changes
Compare models $3,290 recorded MSRP, $876 higher
ZRC 1904
MN64 -Metal
- 41.5 mm case, 0.5 mm narrower
- Same Sellita SW300-1 caliber
What changes
Compare models 2.6 mm thicker case. $3,290 recorded MSRP, $876 higher
Serket Watch Co
Reef X Diver
- $499 recorded MSRP, $1,915 lower
- 43 mm case, 1 mm wider
- 50 mm lug-to-lug, 3 mm longer
What changes
Compare models 1.3 mm thicker case
ZRC 1904
FULL TITANE – NEW
- 41.5 mm case, 0.5 mm narrower
- Same Sellita SW300-1 caliber
What changes
Compare models 7.1 mm thicker case. $4,690 recorded MSRP, $2,276 higher
Knot Watches
AT1-40SSV
- $869 recorded MSRP, $1,545 lower
- 40 mm case, 2 mm narrower
- Both use automatic movements
What changes
Compare models 0.4 mm thinner case
Phoibos
Great Wall
- $465 recorded MSRP, $1,949 lower
- Same 42 mm case diameter
- 48 mm lug-to-lug, 1 mm longer
What changes
Compare models 0.6 mm thicker case
Aigi Watches
ARCTIC DIVER
- $480 recorded MSRP, $1,934 lower
- 41 mm case, 1 mm narrower
- 46 mm lug-to-lug, 1 mm shorter
What changes
Compare models 0.5 mm thicker case
Aigi Watches
Arctic Diver Black Dive Watch
- $480 recorded MSRP, $1,934 lower
- 41 mm case, 1 mm narrower
- 46 mm lug-to-lug, 1 mm shorter
What changes
Compare models 0.5 mm thicker case
Aigi Watches
BARENTS SEA AUTOMATIC round dive watch 43mm, applied markers + date + dive bezel
- $180 recorded MSRP, $2,234 lower
- 43 mm case, 1 mm wider
- 49 mm lug-to-lug, 2 mm longer
What changes
Compare models 0.4 mm thinner case
Borealis Watch Co.
Porto Covo
- $350 recorded MSRP, $2,064 lower
- 40 mm case, 2 mm narrower
- 42.5 mm lug-to-lug, 4.5 mm shorter
What changes
Compare models 0.2 mm thicker case
Orient Star
M42 Diver 1964 2nd Edition F6 Date 200m
- $955 recorded MSRP, $1,459 lower
- 41 mm case, 1 mm narrower
- 49.6 mm lug-to-lug, 2.6 mm longer
What changes
Compare models 3.1 mm thicker case
Mainstream picks· 12
Established-brand matches. Compare the recorded dimensions, movement and price for each watch.
Christopher Ward
C60 Sapphire Edge
- $1,640 recorded MSRP, $774 lower
- Same 42 mm case diameter
- 49.3 mm lug-to-lug, 2.3 mm longer
What changes
Compare models 0.7 mm thinner case
Christopher Ward
C60 Sapphire Edge
- $1,495 recorded MSRP, $919 lower
- Same 42 mm case diameter
- 49.3 mm lug-to-lug, 2.3 mm longer
What changes
Compare models 0.7 mm thinner case
Glycine
Combat Sub Sport
- $1,530 recorded MSRP, $884 lower
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models 1 mm thinner case
Breitling
Avenger Automatic
- 43 mm case, 1 mm wider
- Both use automatic movements
What changes
Compare models 0.9 mm thicker case. $4,700 recorded MSRP, $2,286 higher
Seiko
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch
- 42.6 mm case, 0.6 mm wider
- 49.3 mm lug-to-lug, 2.3 mm longer
- Both use automatic movements
What changes
Compare models 2.7 mm thicker case. $3,600 recorded MSRP, $1,186 higher
Seiko
Prospex Sea 1968 Heritage Diver's GMT
- $1,500 recorded MSRP, $914 lower
- Same 42 mm case diameter
- 48.6 mm lug-to-lug, 1.6 mm longer
What changes
Compare models 1.5 mm thicker case
Vertex
M60 AquaLion D
- 39 mm case, 3 mm narrower
- 45 mm lug-to-lug, 2 mm shorter
- Same Sellita SW300-1 caliber
What changes
Compare models 0.4 mm thinner case. $3,243 recorded MSRP, $829 higher
Fortis
Flieger F-41
- 41 mm case, 1 mm narrower
- Both use automatic movements
What changes
$3,080 recorded MSRP, $666 higher
Glycine
Combat Sub
- $1,530 recorded MSRP, $884 lower
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models 1 mm thinner case
Sinn
T50 GBDR
- 41 mm case, 1 mm narrower
- Same Sellita SW300-1 caliber
What changes
Compare models 0.9 mm thicker case. $4,428 recorded MSRP, $2,014 higher
Bremont
Supermarine 500M
- 43 mm case, 1 mm wider
- Both use automatic movements
What changes
Compare models 1.6 mm thicker case. $4,350 recorded MSRP, $1,936 higher
Christopher Ward
C60 Trident Reef
- $1,220 recorded MSRP, $1,194 lower
- 41 mm case, 1 mm narrower
- 47.9 mm lug-to-lug, 0.9 mm longer
What changes
Compare models Dimensions alone do not establish wrist fit.
Cheaper alternatives· 12
Matches in a lower price band. A recorded MSRP difference is shown only when both prices are known.
Tissot
Seastar 1000
- $925 recorded MSRP, $1,489 lower
- 43 mm case, 1 mm wider
- 43 mm lug-to-lug, 4 mm shorter
What changes
Compare models 1.3 mm thicker case
Seiko
Prospex Sea
- $595 recorded MSRP, $1,819 lower
- 41.7 mm case, 0.3 mm narrower
- 49.5 mm lug-to-lug, 2.5 mm longer
What changes
Compare models 0.9 mm thicker case
Orient
Sports Diver
- $700 recorded MSRP, $1,714 lower
- 43.6 mm case, 1.6 mm wider
- 51 mm lug-to-lug, 4 mm longer
What changes
Compare models 2.6 mm thicker case
Seiko
62MAS
- $1,200 recorded MSRP, $1,214 lower
- 40.5 mm case, 1.5 mm narrower
- 47.6 mm lug-to-lug, 0.6 mm longer
What changes
Compare models 1.8 mm thicker case
Seiko
Prospex Sea
- $1,100 recorded MSRP, $1,314 lower
- 41.3 mm case, 0.7 mm narrower
- 48.2 mm lug-to-lug, 1.2 mm longer
What changes
Compare models 1.1 mm thicker case
Orient
Mako-3 AA08 Diver Watch
- $375 recorded MSRP, $2,039 lower
- 41.8 mm case, 0.2 mm narrower
- 46.8 mm lug-to-lug, 0.2 mm shorter
What changes
Compare models 1.4 mm thicker case
Orient
Diver Watch
- $350 recorded MSRP, $2,064 lower
- 41.5 mm case, 0.5 mm narrower
- Both use automatic movements
What changes
Compare models 1.6 mm thicker case
Invicta
Pro Diver 5053
- 40 mm case, 2 mm narrower
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Invicta
Pro Diver 5053OBXL
- 43 mm case, 1 mm wider
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Timex
Deepwater Meridian 200 Automatic GMT 42mm Stainless Steel Bracelet Watch
- $549 recorded MSRP, $1,865 lower
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Citizen
Promaster Fujitsubo
- $1,195 recorded MSRP, $1,219 lower
- 41 mm case, 1 mm narrower
- Both use automatic movements
What changes
Compare models Lug-to-lug is not recorded for this match.
Glycine
Men's Combat Sub Box Ceramic 41mm Automatic Watch
- $705 recorded MSRP, $1,709 lower
- 41 mm case, 1 mm narrower
- 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.
Blancpain
Bathyscaphe Chronographe Flyback
- 43 mm case, 1 mm wider
- Both use automatic movements
What changes
Compare models 3.5 mm thicker case. $22,800 recorded MSRP, $20,386 higher
Blancpain
Bathyscaphe
- 43 mm case, 1 mm wider
- Both use automatic movements
What changes
Compare models 2 mm thicker case. $17,100 recorded MSRP, $14,686 higher
Blancpain
Bathyscaphe
- 43.6 mm case, 1.6 mm wider
- Both use automatic movements
What changes
Compare models 2.4 mm thicker case. $26,000 recorded MSRP, $23,586 higher
Breitling
Superocean Heritage B31 Automatic
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models 0.6 mm thicker case. $6,800 recorded MSRP, $4,386 higher
Rolex
Submariner
- 41 mm case, 1 mm narrower
- Both use automatic movements
What changes
Compare models $10,050 recorded MSRP, $7,636 higher
Breitling
Superocean Heritage B20 Automatic
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models 2.9 mm thicker case. $6,100 recorded MSRP, $3,686 higher
IWC Schaffhausen
Iw328801 Aquatimer Automatic
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models 2.7 mm thicker case. $6,700 recorded MSRP, $4,286 higher
Omega
Seamaster Diver 300M Co Axial Master Chronometer 42mm
- Same 42 mm case diameter
- 49.9 mm lug-to-lug, 2.9 mm longer
- Both use automatic movements
What changes
Compare models 2.2 mm thicker case. $7,300 recorded MSRP, $4,886 higher
Omega
Seamaster Planet Ocean 600M Co Axial Master Chronometer 42mm
- Same 42 mm case diameter
- 47.5 mm lug-to-lug, 0.5 mm longer
- Both use automatic movements
What changes
Compare models 2.4 mm thicker case. $8,600 recorded MSRP, $6,186 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 thicker case. $13,000 recorded MSRP, $10,586 higher
Breitling
Superocean Automatic
- Same 42 mm case diameter
- Both use automatic movements
What changes
Compare models 1.2 mm thicker case. $5,700 recorded MSRP, $3,286 higher
Bremont
S502
- 43 mm case, 1 mm wider
- Both use automatic movements
What changes
Compare models 5.1 mm thicker case. $5,100 recorded MSRP, $2,686 higher
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