
Finding alternatives to
Formex Reef 39.5 mm
Ref. reef-39.5-automatic-chronometer-cosc-300m-bahama-blue
43 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
Microbrand picks· 12
Independent makers covering the same brief — usually with something the mainstream brands don't.

Bremont
Green 40mm
40mm · Automatic$3,550
Pro diver · Automatic

Lum-Tec
Marine 9
39mm · Automatic$463
Pro diver · Automatic

Spinnaker
Aquamarine
40mm · Automatic$650
Pro diver · Automatic

Astor + Banks
Tobacco
40mm · Automatic$1,149
Pro diver · Automatic

Bremont
RNLI Orange
40mm · Automatic$3,795
Pro diver · Automatic

Bremont
Blue / Green 40mm
40mm · Automatic$3,900
Pro diver · Automatic

Fortis
Amber Orange
40mm · Automatic$3,520
Pro diver · Automatic

Monta
Blue / Aluminum
40mm · Automatic$2,550
Pro diver · Automatic

Yema
Steel
39mm · Automatic$1,890
Pro diver · Automatic

Yema
39mm Automatic
39mm · Automatic$1,004
Pro diver · Automatic

Yema
Gilt Black
39mm · Automatic$1,699
Pro diver · Automatic

Maen
M1.1.5
38mm · Automatic$719
Pro diver · Automatic
Steps up from here· 7
Where the same idea goes when budget isn't the constraint.

Grand Seiko
SBGE253
40.5mm · Spring Drive$6,900
Tool diver · Same size

Ikepod
Seaslug S01
39mm · Automatic$5,859
Automatic · Same size

Seiko
Prospex Marinemaster Seiko Diver’s Watch 60th Anniversary Limited Edition
45.4mm · Automatic$4,600
Pro diver · Automatic

Grand Seiko
SBGH289
43.8mm · Automatic$7,700
Tool diver · Automatic

Grand Seiko
SBGJ237
44.2mm · Automatic$7,600
Tool diver · Automatic

Ikepod
Kaws HHTK03
40mm · Automatic$45,900
Automatic · Same size

Ikepod
Kaws HHTK03 Copy
40mm · Automatic$50,220
Automatic · Same size
In the same price band· 12
Comparable watches at roughly the same money. Often the deciding click for a new buyer.

Formex
Reef 42 mm
42mm · Automatic$2,414
Shared caliber (Sellita SW300-1) · Same family (Reef)

DOXA
SUB 600T
40mm · Automatic$1,650
Pro diver · Automatic

CWC
1980 RN Divers Automatic Re-Issue Watch
41mm · Automatic$2,458
Pro diver · Automatic

CWC
Automatic Divers Watch Mk.2 Black
41mm · Automatic$1,249
Pro diver · Automatic

CWC
Arctic Radar Automatic Diver Watch
41mm · Automatic$1,333
Pro diver · Automatic

Seiko
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition
40mm · Automatic$1,400
Pro diver · Automatic

Seiko
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition
40mm · Automatic$1,400
Pro diver · Automatic

Seiko
Prospex Sea 1965 Heritage Diver's Watch
40mm · Automatic$1,300
Pro diver · Automatic

DOXA
SUB 300
42.5mm · Automatic$2,890
Pro diver · Automatic

DOXA
DOXA Army
42.5mm · Automatic$2,490
Pro diver · Automatic

Longines
LEGEND DIVER
39mm · Automatic$3,850
Pro diver · Automatic

Venezianico
Nereide Avventurina Nera
39mm · Automatic$1,650
Tool diver · Automatic
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.

Phoibos
Depth Hunter
40mm · Automatic$470
Pro diver · Automatic

Phoibos
Depth Hunter Dlc
40mm · Automatic$500
Pro diver · Automatic

Helgray
Poseidon Diver (Automatic)
40mm · Automatic$249
Pro diver · Automatic

Borealis Watch Co.
Neptuno
40.00mm · Automatic$390
Pro diver · Automatic

Tissot
Seastar 1000
40mm · Automatic$875
Pro diver · Automatic

Tissot
Seastar Wilson WNBA
40mm · Automatic$875
Pro diver · Automatic

Phoibos
Great Wall
42mm · Automatic$465
Pro diver · Automatic

Borealis Watch Co.
Bull Shark V2
38mm · Automatic$495
Pro diver · Automatic

Borealis Watch Co.
Estoril 300 GMT
41.50mm · Automatic$600
Pro diver · Automatic

Marloe Watch Company
Morar 310
42mm · Automatic$697
Pro diver · Automatic

Nodus
Sector Deep
38mm · Automatic$650
Pro diver · Automatic

Nodus
Sector Deep Pioneer
38mm · Automatic$675
Pro diver · Automatic