Longines HYDROCONQUEST GMT
Finding alternatives to

Longines HYDROCONQUEST GMT

Ref. L3.890.4.06.6

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

Case
43mm
Movement
Automatic
Category
Diver
MSRP
$3,350
The short answer

The closest alternative to the Longines HYDROCONQUEST GMT is the Bremont S502 ($5,100) — common cross-shop and Pro diver. If price is the constraint, the Tissot Seastar 1000 at $875 (vs $3,350 for the HYDROCONQUEST GMT) covers most of the same brief. From the independents, the Oris Aquis Date Calibre 400 is the standout microbrand take — common cross-shop and Pro diver. Stepping up, the Bremont Supermarine Chrono ($6,850) is where the same idea goes with a bigger budget.

57 matches
Microbrand picks· 12

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

Oris
Aquis Date Calibre 400
41.5mm · Automatic$5,150
Common cross-shop · Pro diver
Oris
Great Barrier Reef Limited Edition IV
43.5mm · Automatic$4,750
Common cross-shop · Pro diver
Spinnaker
Dumas Automatic
44mm · Automatic$239
Pro diver · Visually similar
Borealis Watch Co.
Caloura 300m
42mm · Automatic$275
Pro diver · Visually similar
Islander
Islander Automatic GMT Dive Watch with Blue Waffle Dial #ISL-214
42mm · Automatic$499
Pro diver · Visually similar
Oris
Dat Watt Limited Edition II
43.5mm · Automatic$3,300
Common cross-shop · Pro diver
Astor + Banks
Sea Ranger M2
40mm · Automatic$1,149
Pro diver · Looks nearly identical
Borealis Watch Co.
Jamanta
42.50mm · Automatic$415
Pro diver · Visually similar
Spinnaker
Hull Diver
42mm · Automatic$375
Pro diver · Visually similar
Islander
Islander Luminous Dial Automatic Dive Watch with AR Double-Dome Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-26
42mm · Automatic$420
Pro diver · Visually similar
Phoibos
Apollo Titanium
41mm · Automatic$575
Pro diver · Visually similar
Spinnaker
Golden Eclipse
43mm · Automatic$390
Pro diver · Visually similar
Most similar· 12

The closest match overall — same case size, similar movement family, comparable price. Often the deciding click for a new buyer.

Bremont
S502
43mm · Automatic$5,100
Common cross-shop · Pro diver
Bremont
Waterman Apex
43mm · Mechanical$5,350
Common cross-shop · Pro diver
Longines
HYDROCONQUEST MESH
41mm · Automatic$2,350
Pro diver · Looks nearly identical
Seiko
Prospex Sea 1968 Heritage Diver's GMT Watch
42mm · Automatic$1,700
Pro diver · Visually similar
Seiko
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition
42mm · Automatic$1,750
Pro diver · Visually similar
Bremont
Supermarine 300M
40mm · Automatic$3,550
Common cross-shop · Pro diver
Longines
HYDROCONQUEST
41mm · Automatic$2,000
Pro diver · Looks nearly identical
Seiko
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch
42.6mm · Automatic$2,900
Pro diver · Visually similar
Tudor
Pelagos LHD
40mm · Automatic$6,025
Pro diver · Visually similar
Glycine
Combat Sub Vintage
42mm · Automatic$1,750
Pro diver · Visually similar
Tudor
Black Bay 68
43mm · Automatic$5,475
Pro diver · Visually similar
Hamilton
Khaki Navy Frogman Titanium Auto
46mm · Automatic$1,675
Common cross-shop · Pro diver
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.

Tissot
Seastar 1000
40mm · Automatic$875
Common cross-shop · Pro diver
Seiko
Prospex Sea
43.5mm · Automatic$1,500
Pro diver · Looks nearly identical
Seiko
Prospex Sea
41.3mm · Automatic$1,100
Pro diver · Visually similar
Seiko
Prospex Sea 1968 Heritage Diver's GMT
42mm · Automatic$1,500
Pro diver · Visually similar
Tissot
Seastar 2000
46mm · Automatic$1,275
Common cross-shop · Pro diver
Glycine
Combat Sub Sport
42mm · Automatic$1,650
Pro diver · Looks nearly identical
Hamilton
Khaki Navy Scuba Auto
40mm · Automatic$975
Common cross-shop · Pro diver
Orient
Kanno
44mm · Automatic$320
Pro diver · Visually similar
Orient
RA-AC0K05G00B LE
43.4mm · Automatic$450
Pro diver · Visually similar
Orient
RA-AC0K Diver Watch
43.4mm · Automatic$455
Pro diver · Visually similar
Citizen
Promaster Diver Automatic
44mm · Automatic$469
Pro diver · Visually similar
Citizen
Promaster Fujitsubo
41mm · Automatic$1,195
Pro diver · Visually similar
Pricier alternatives· 12

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

Bremont
Supermarine Chrono
43mm · Automatic$6,850
Common cross-shop · Pro diver
Grand Seiko
SBGH289
43.8mm · Automatic$7,700
Pro diver · Automatic
Grand Seiko
SLGA015
43.8mm · Spring Drive$12,600
Pro diver · Same size
Tudor
Black Bay 58 18K
39mm · Automatic$22,550
Pro diver · Visually similar
Bell & Ross
BR 03-92 DIVER BLUE BRONZE SAPPHIRE BEZEL
42mm · Automatic$8,532
Pro diver · Visually similar
Longines
LONGINES SPIRIT FLYBACK PROTOTYPE
42mm · Automatic$7,400
Pro diver · Looks nearly identical
Linde Werdelin
Oktopus III Bronze
45mm · Automatic$20,953
Pro diver · Automatic
Linde Werdelin
Oktopus Deep Sea
44mm · Automatic$8,102
Pro diver · Automatic
Linde Werdelin
Oktopus III
45mm · Automatic$20,953
Pro diver · Automatic
Tudor
Pelagos Ultra
40mm · Automatic$6,900
Pro diver · Automatic
Grand Seiko
SBGA481
44.5mm · Spring Drive$11,100
Pro diver · Similar size
Bremont
Supernova
41mm · Automatic$8,250
Common cross-shop · Automatic
Looks like this· 9

Visually-adjacent picks pulled by the image-similarity engine. Quality varies — sometimes a true twin, sometimes just a rhyme.

Pagani Design
PD-1680
44mm · Automatic$171
Pro diver · Visually similar
Pagani Design
PD-1639
43mm · Automatic$120
Pro diver · Visually similar
Pagani Design
PD-1668A
43mm · Automatic$128
Pro diver · Visually similar
Sugess
Seestern DOX V3
42mm · Automatic$199
Pro diver · Automatic
Seestern
Sub 300 V4
42mm · Automatic$10
Pro diver · Automatic
Sugess
Seestern 62MAS V3
39mm · Automatic$199
Pro diver · Visually similar
Sugess
Seestern S434 Pro Diver
40mm · Automatic$249
Pro diver · Visually similar
Seestern
S450 Ocean Star
40mm · Automatic$299
Pro diver · Automatic
Seestern
S471 Double Crown Diver
38mm · Automatic$179
Pro diver · Automatic