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/Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Finding alternatives to

Alternatives to the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100

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

Case
39.5mm
Movement
Automatic
Category
Diver
MSRP
$2,230
The short answer

The closest alternative to the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100 is the Vertex M60 AquaLion D ($3,243) — shared caliber (Sellita SW300-1) and Pro diver. If price is the constraint, the Orient Diver Design 40 at $395 (vs $2,230 for the Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100) covers most of the same brief. From the independents, the Formex Reef 39.5 mm is the standout microbrand take — shared caliber (Sellita SW300-1) and Pro diver. Stepping up, the Breitling Superocean Heritage B31 Automatic ($6,500) is where the same idea goes with a bigger budget.

48 matches

Microbrand picks· 12

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

Formex Reef 39.5 mm
Formexmicro

Reef 39.5 mm

7 variants
39.5mm·Automatic·300m WR
$2,230MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
VPC Watch TYPE 39VM (Presale)
VPC Watchmicro

TYPE 39VM (Presale)

 
39mm·Automatic·200m WR
$2,768MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Islander Formex Baby REEF 39.5mm Chronometer Watch with Bahama Blue Dial #2201.1.6367.900
Islandermicro

Formex Baby REEF 39.5mm Chronometer Watch with Bahama Blue Dial #2201.1.6367.900

 
39.5mm·Automatic·300m WR
$2,085MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
ZRC 1904 MN64 -Metal
ZRC 1904micro

MN64 -Metal

2 variants
41.5mm·Automatic·1000m WR
$3,690MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
ZRC 1904 HETERIUM -METAL
ZRC 1904micro

HETERIUM -METAL

2 variants
41.5mm·Automatic·1000m WR
$3,690MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Formex Reef 42 mm
Formexmicro

Reef 42 mm

6 variants
42mm·Automatic·300m WR
$2,414MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
ZRC 1904 FULL TITANE – NEW
ZRC 1904micro

FULL TITANE – NEW

2 variants
41.5mm·Automatic·3000m WR
$4,690MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Bernhardt The Cipher Diver
Bernhardtmicro
Cipher

The Cipher Diver

4 variants
39mm·Automatic·300m WR
$795MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Erebus Watches ORIGIN 40
Erebus Watchesmicro

ORIGIN 40

8 variants
40mm·Automatic·200m WR
$399MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Geckota Ocean-Scout Dive Watch
Geckotamicro

Ocean-Scout Dive Watch

5 variants · Ocean-Scout
38.5mm·Automatic·200m WR
$375MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
HTD Watches Aquatìc Bicchierini
HTD Watchesmicro

Aquatìc Bicchierini

2 variants
39mm·Automatic·200m WR
$929MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
IXDAO Titanium 39mm Automatic Dive Watch
IXDAOmicro

Titanium 39mm Automatic Dive Watch

4 variants
39mm·Automatic·200m WR
$269MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100

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.

Vertex M60 AquaLion D
Vertex

M60 AquaLion D

 
39mm·Automatic·600m WR
$3,243MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Vertex M60 AquaLion ND
Vertex

M60 AquaLion ND

 
40mm·Automatic·600m WR
$3,243MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Vertex M60C AquaLion DC
Vertex

M60C AquaLion DC

 
40mm·Automatic·600m WR
$3,345MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Bremont Supermarine 300M
Bremont

Supermarine 300M

8 variants · Supermarine
40mm·Automatic·300m WR
$3,550MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Longines HYDROCONQUEST
Longines

HYDROCONQUEST

13 variants · Ref. L3.782.4.06.6
39/41/43mm·Automatic·300m WR
$2,000MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Christopher Ward C60 Sapphire Edge
Christopher Ward

C60 Sapphire Edge

2 variants · C60
42mm·Automatic·300m WR
$1,640MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Christopher Ward C60 Sapphire Edge
Christopher Ward

C60 Sapphire Edge

2 variants · C60
42mm·Automatic·300m WR
$1,495MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Fortis Marinemaster M-40
Fortis

Marinemaster M-40

8 variants · Marinemaster
40mm·Automatic·300m WR
$3,520MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Longines HYDROCONQUEST
Longines

HYDROCONQUEST

4 variants · Ref. L3.788.4.06.6
39/42mm·Automatic·300m WR
$2,200MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Yema Superman Dato CMM.10
Yema

Superman Dato CMM.10

4 variants · Superman
39.5mm·Automatic·300m WR
$1,777MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
TAG Heuer Aquaracer Professional 200 Date
TAG Heuer

Aquaracer Professional 200 Date

 
40mm·Automatic·200m WR
$3,350MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Yema Skin Diver CMM.20
Yema

Skin Diver CMM.20

3 variants · Skin Diver
39.5mm·Automatic·200m WR
$2,372MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100

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.

Orient Diver Design 40
Orient
AC0Q

Diver Design 40

6 variants
39.9mm·Automatic·200m WR
$395MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Tissot Seastar 1000
Tissot

Seastar 1000

7 variants
40/43mm·Automatic·300m WR
$875MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Christopher Ward C60 Trident Pro 300
Christopher Ward
Trident

C60 Trident Pro 300

3 variants · Trident
40mm·Automatic·300m WR
$1,095MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Yema Navygraf Heritage
Yema

Navygraf Heritage

2 variants · Navygraf
39mm·Automatic·100m WR
$990MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Yema Superman Heritage
Yema

Superman Heritage

2 variants · Superman
39mm·Automatic·300m WR
$1,004MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Orient AC0Q-40 Diver Watch
Orient
DiverAC0Q

AC0Q-40 Diver Watch

6 variants · AC0Q
39.9mm·Automatic·200m WR
$370MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Invicta Pro Diver 5053
Invictamicro

Pro Diver 5053

5 variants
40mm·Automatic·200m WR
—MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Glycine Unisex Combat Sub Bronze 39mm Automatic Watch GL0517
Glycine

Unisex Combat Sub Bronze 39mm Automatic Watch GL0517

8 variants
39mm·Automatic·300m WR
$1,550MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Seiko Prospex Sea
Seiko

Prospex Sea

3 variants
41.3mm·Automatic·300m WR
$1,100MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Timex Expedition Pioneer Titanium Automatic 41mm Bracelet Watch
Timex

Expedition Pioneer Titanium Automatic 41mm Bracelet Watch

 
41mm·Automatic·200m WR
$579MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Glycine Men's Combat Sub Box Ceramic 41mm Automatic Watch
Glycine
Combat

Men's Combat Sub Box Ceramic 41mm Automatic Watch

5 variants
41mm·Automatic·200m WR
$705MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Invicta Pro Diver 8926T-TF
Invictamicro

Pro Diver 8926T-TF

2 variants
40mm·Automatic·200m WR
—MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100

Pricier alternatives· 12

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

Breitling Superocean Heritage B31 Automatic
Breitling

Superocean Heritage B31 Automatic

7 variants · Superocean Heritage
40/42/44mm·Automatic·200m WR
$6,500MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Tudor Pelagos 39
Tudor

Pelagos 39

 
39mm·Automatic·200m WR
—MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Breitling Superocean Heritage B31 Automatic 40 Kelly Slater
Breitling

Superocean Heritage B31 Automatic 40 Kelly Slater

Ref. AB31101A/CC61/225A
40mm·Automatic·200m WR
—MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
TAG Heuer Aquaracer Calibre 5
TAG Heuer

Aquaracer Calibre 5

 
41mm·Automatic·300m WR
—MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Tudor Bay 58
Tudor
Black Bay 58

Bay 58

2 variants
39mm·Automatic·200m WR
—MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Omega Seamaster Diver 300M Co Axial Master Chronometer 43 5mm
Omega

Seamaster Diver 300M Co Axial Master Chronometer 43 5mm

4 variants · Seamaster Diver 300M
43.5mm·Automatic·300m WR
$10,000MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Blancpain Bathyscaphe
Blancpain
Fifty Fathoms

Bathyscaphe

2 variants · Fifty Fathoms
38mm·Automatic·300m WR
$12,500MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Breitling Avenger Automatic
Breitling

Avenger Automatic

6 variants · Avenger
42/43mm·Automatic·300m WR
$4,900MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
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 Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Omega Seamaster Planet Ocean 600M Co Axial Master Chronometer 42mm
Omega

Seamaster Planet Ocean 600M Co Axial Master Chronometer 42mm

7 variants · Seamaster Planet Ocean 600M
42mm·Automatic·600m WR
$8,600MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Tudor Pelagos
Tudor

Pelagos

2 variants
42mm·Automatic·500m WR
—MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
Blancpain Fifty Fathoms Automatique
Blancpain

Fifty Fathoms Automatique

4 variants · Fifty Fathoms
38.2mm·Automatic·300m WR
$18,600MSRP
vsCompare with the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100
← Back to the Islander Formex Reef 39.5mm Dive Watch with Forged Carbon Dial and Bezel #2201.1.6399.100Best Diver Watches Under $500 →Open the alternatives engine