Borealis Watch Co. Sea Storm MK2 GMT
Finding alternatives to

Borealis Watch Co. Sea Storm MK2 GMT

Ref. borealis-sea-storm-mk2-gmt-version-aa

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

Case
41.50mm
Movement
Automatic
Category
Diver
MSRP
$415
The short answer

The closest alternative to the Borealis Watch Co. Sea Storm MK2 GMT is the Seiko Prospex Sea — common cross-shop and Pro diver. From the independents, the CWC Arctic Radar Automatic Diver Watch is the standout microbrand take — common cross-shop and Pro diver. Stepping up, the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch ($1,700) is where the same idea goes with a bigger budget.

45 matches
Microbrand picks· 12

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

CWC
Arctic Radar Automatic Diver Watch
41mm · Automatic$1,333
Common cross-shop · Pro diver
Borealis Watch Co.
Estoril 300 GMT
41.50mm · Automatic$600
Pro diver · Looks nearly identical
CWC
1980 RN Divers Automatic Re-Issue Watch
41mm · Automatic$2,458
Common cross-shop · Pro diver
CWC
E9 Automatic Diver Watch
41mm · Automatic$1,391
Common cross-shop · Pro diver
Spinnaker
Bradner
42mm · Automatic$179
Common cross-shop · Pro diver
Boldr
Marine
40mm · Automatic$439
Common cross-shop · Related caliber family
Lorier
Hydra SIII
39mm · Automatic$699
Common cross-shop · Pro diver
Spinnaker
Tesei Titanium
42mm · Automatic$625
Common cross-shop · Pro diver
Tornek-Rayville
Paradive G3 12-hr Aluminum Non-date
41.25mm · Automatic$949
Pro diver · Looks nearly identical
Borealis Watch Co.
Sea Storm MK2
41.50mm · Automatic$475
Related caliber family · Same family (Sea Storm)
Borealis Watch Co.
Caloura 300m
42mm · Automatic$275
Related caliber family · Pro diver
HELM
Vanuatu
42mm · Automatic$285
Pro diver · Looks nearly identical
Most similar· 12

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

Seiko
Prospex Sea
42mm · Automatic
Common cross-shop · Pro diver
Orient
AC0Q-40 Diver Watch
39.9mm · Automatic$370
Common cross-shop · Pro diver
Orient
Diver Watch
41.5mm · Automatic$285
Common cross-shop · Pro diver
Orient
Kamasu
41.8mm · Automatic$375
Common cross-shop · Pro diver
Seiko
Prospex Sea
41.7mm · Automatic$595
Common cross-shop · Pro diver
Seiko
Monster
42.4mm · Automatic$550
Common cross-shop · Pro diver
Tissot
PR516
38mm · Automatic$825
Common cross-shop · Pro diver
Tudor
Black Bay
41mm · Automatic
Pro diver · Automatic
Citizen
Tsuyosa Shore
40mm · Automatic$495
Common cross-shop · Pro diver
Citizen
Promaster Diver Automatic
44mm · Automatic$469
Common cross-shop · Pro diver
Marathon
Jeep Willys SSGPM
41mm · Manual$780
Common cross-shop · Visually similar
Schofield
B3
44mm · Automatic
Automatic · Sapphire
Pricier alternatives· 12

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

Seiko
Prospex Sea 1968 Heritage Diver's GMT Watch
42mm · Automatic$1,700
Common cross-shop · Pro diver
Tissot
Seastar 1000
40mm · Automatic$875
Common cross-shop · Pro diver
Seiko
62MAS
40.5mm · Automatic$1,200
Common cross-shop · Pro diver
Seiko
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch
42.6mm · Automatic$3,600
Common cross-shop · Pro diver
Glycine
Combat Sub Sport
42mm · Automatic$1,650
Common cross-shop · Pro diver
Marathon
Jeep Rubicon TSAR
41mm · Automatic$1,650
Common cross-shop · Pro diver
Marathon
OSAR-D (Original SAR with Date) Automatic 41mm
41mm · Automatic$1,800
Common cross-shop · Pro diver
Glycine
Combat Sub
42mm · Automatic$1,850
Common cross-shop · Pro diver
Marathon
Jeep Rubicon GSAR
41mm · Automatic$2,100
Common cross-shop · Pro diver
Glycine
Combat Sub Box Ceramic
41mm · Automatic$1,800
Common cross-shop · Pro diver
Hamilton
Khaki Navy Frogman Auto
41mm · Automatic$1,395
Common cross-shop · Pro diver
Hamilton
Khaki Navy Scuba Auto
40mm · Automatic$975
Common cross-shop · Pro diver
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-1755
40mm · Automatic$146
Common cross-shop · Pro diver
Pagani Design
PD-1719
42.5mm · Automatic$154
Common cross-shop · Pro diver
Pagani Design
PD-1812
42mm · Automatic$150
Common cross-shop · Pro diver
Sugess
Seestern S430 Titanium Diver
40mm · Automatic$299
Pro diver · Looks nearly identical
Seestern
Sub 300 V4
42mm · Automatic$10
Pro diver · Looks nearly identical
Sugess
Seestern Vintage S407 600T
39mm · Automatic$249
Related caliber family · Pro diver
Sugess
Seestern S434 Pro Diver
40mm · Automatic$249
Related caliber family · Pro diver
Seestern
S450 Ocean Star
40mm · Automatic$299
Pro diver · Automatic
Seestern
S443 Column Wheel Chronograph
40mm · Manual$10
Pro diver · Visually similar