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Browse/Alternatives/Seestern Ocean Star GMT S420-2
Seestern Ocean Star GMT S420-2
Finding alternatives to

Alternatives to the Seestern Ocean Star GMT S420-2

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

Case
40mm
Movement
Automatic
Category
Diver
MSRP
$339
The short answer

The closest alternative to the Seestern Ocean Star GMT S420-2 is the Orient Diver Design 40 ($395) — skin-diver style and Looks nearly identical. If price is the constraint, the Casio Edifice EFK-100D covers most of the same brief. From the independents, the Filippo Loreti Watches BOGO: Aquadiver GMT Automatic is the standout microbrand take — skin-diver style and Looks nearly identical. Stepping up, the Tudor Black Bay 58 79030 ($4,000) is where the same idea goes with a bigger budget.

ColourwayPick a colorway to match a specific dial
38 matches

Microbrand picks· 12

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

Filippo Loreti Watches BOGO: Aquadiver GMT Automatic
Filippo Loreti Watchesmicro

BOGO: Aquadiver GMT Automatic

2 variants
40mm·Automatic·200m WR
$410MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Aigi Watches GRUVEBUS
Aigi Watchesmicro

GRUVEBUS

4 variants
40mm·Automatic·200m WR
$1,095MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Aigi Watches RAAF
Aigi Watchesmicro

RAAF

 
40mm·Automatic·200m WR
$1,032MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Erebus Watches ORIGIN 40
Erebus Watchesmicro

ORIGIN 40

8 variants
40mm·Automatic·200m WR
$399MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Islander Greenport 39mm Dive Watch with Black and White Dial #ISL-300
Islandermicro
Under $50

Greenport 39mm Dive Watch with Black and White Dial #ISL-300

 
39mm·Automatic·200m WR
$399MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
La Touraine Atlantic Automatic Dive Watch
La Tourainemicro

Atlantic Automatic Dive Watch

5 variants
40.5mm·Automatic·200m WR
$350MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Lorier Hydra SIII
Loriermicro

Hydra SIII

 
39mm·Automatic·200m WR
$699MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Pompeak Sub-Aquatic
Pompeakmicro

Sub-Aquatic

3 variants
40mm·Automatic·200m WR
$915MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Ratio FreeDiver GMT Series
Ratiomicro

FreeDiver GMT Series

5 variants
40mm·Automatic·200m WR
$170MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Raven MCTP - 39mm GMT
Ravenmicro

MCTP - 39mm GMT

 
39mm·Automatic·200m WR
$590MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Seagull Ocean Series 200m Metallic Gradient Dial Calendar Dive Watch 39mm
Seagullmicro

Ocean Series 200m Metallic Gradient Dial Calendar Dive Watch 39mm

3 variants
39mm·Automatic·200m WR
$879MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Thorn 40mm NH35A Diver Automatic Watch
Thornmicro
Vintage Diver Watches

40mm NH35A Diver Automatic Watch

5 variants
40mm·Automatic·200m WR
$169MSRP
vsCompare with the Seestern Ocean Star GMT S420-2

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.

Orient Diver Design 40
Orient
AC0Q

Diver Design 40

6 variants
39.9mm·Automatic·200m WR
$395MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Invicta Pro Diver 23678
Invictamicro

Pro Diver 23678

 
40mm·Automatic·200m WR
—MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Invicta Pro Diver 5053
Invictamicro

Pro Diver 5053

5 variants
40mm·Automatic·200m WR
—MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Invicta Pro Diver 8927OB
Invictamicro

Pro Diver 8927OB

7 variants
40mm·Automatic·200m WR
—MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Timex Deepwater Meridian 200 Automatic GMT 42mm Stainless Steel Bracelet Watch
Timex

Deepwater Meridian 200 Automatic GMT 42mm Stainless Steel Bracelet Watch

3 variants
42mm·Automatic·200m WR
$549MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Orient AC0Q-40 Diver Watch
Orient
DiverAC0Q

AC0Q-40 Diver Watch

6 variants · AC0Q
39.9mm·Automatic·200m WR
$370MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Bulova Black Dial Stainless Steel Bracelet Vintage Sea Hunter 43B175
Bulova
Vintage Sea Hunter

Black Dial Stainless Steel Bracelet Vintage Sea Hunter 43B175

5 variants
39mm·Automatic·200m WR
$395MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Citizen Tsuyosa Shore
Citizen

Tsuyosa Shore

2 variants · Tsuyosa
40mm·Automatic·100m WR
$495MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Glycine Men's Airman Double Twelve 42mm Automatic Watch GL0062
Glycine
Airman

Men's Airman Double Twelve 42mm Automatic Watch GL0062

 
42mm·Automatic·200m WR
$590MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
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 Seestern Ocean Star GMT S420-2
Orient Kamasu
Orient

Kamasu

4 variants
41.8mm·Automatic·200m WR
$375MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Seiko Prospex Sea
Seiko

Prospex Sea

4 variants
41.7mm·Automatic·200m WR
$595MSRP
vsCompare with the Seestern Ocean Star GMT S420-2

Cheaper alternatives· 2

If the price is the only thing keeping you off this watch, these get you most of the way there for less.

Casio Edifice EFK-100D
Casio

Edifice EFK-100D

Ref. EFK-100D-7A
39mm·Automatic·100m WR
—MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Seiko Conceptual SNK807K2
Seiko
Seiko 5

Conceptual SNK807K2

 
37mm·Automatic
$115MSRP
vsCompare with the Seestern Ocean Star GMT S420-2

Pricier alternatives· 12

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

Tudor Black Bay 58 79030
Tudor

Black Bay 58 79030

2 variants
39mm·Automatic·200m WR
$4,000MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Movado Series 800 Automatic
Movadomicro

Series 800 Automatic

3 variants · Ref. 2600197
40mm·Automatic·200m WR
$1,895MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Oris Oris X RedBar Limited Edition II
Oris
Divers

Oris X RedBar Limited Edition II

4 variants · Divers
39mm·Automatic·200m WR
$2,950MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
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 Seestern Ocean Star GMT S420-2
Glycine Men's Combat Sub Sport 39mm Automatic Watch GL0403
Glycine
Combat

Men's Combat Sub Sport 39mm Automatic Watch GL0403

 
39mm·Automatic·300m WR
$1,650MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Vertex M60 AquaLion D
Vertex

M60 AquaLion D

 
39mm·Automatic·600m WR
$3,243MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Bremont Supermarine 300M
Bremont

Supermarine 300M

8 variants · Supermarine
40mm·Automatic·300m WR
$3,550MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Fortis Marinemaster M-40
Fortis

Marinemaster M-40

8 variants · Marinemaster
40mm·Automatic·300m WR
$3,520MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Seiko 62MAS
Seiko
Prospex Sea

62MAS

 
40.5mm·Automatic·200m WR
$1,200MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Seiko Prospex Sea 1965 Heritage Diver's Watch
Seiko

Prospex Sea 1965 Heritage Diver's Watch

2 variants · Prospex Sea
40mm·Automatic·300m WR
$1,300MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Longines HYDROCONQUEST
Longines

HYDROCONQUEST

13 variants · Ref. L3.782.4.06.6
39/41/43mm·Automatic·300m WR
$2,000MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
Yema Skin Diver CMM.20
Yema

Skin Diver CMM.20

3 variants · Skin Diver
39.5mm·Automatic·200m WR
$2,372MSRP
vsCompare with the Seestern Ocean Star GMT S420-2
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