Finding alternatives to
Sugess Ocean Star S421
Ref. S421
87 watches that match on case size, movement family, and price band. Sorted by how close the match is.
Case
40mm
Movement
Automatic
MSRP
$449
ComplicationsGMTChronographMoonphaseDate
Microbrand picks· 36
Independent makers covering the same brief — usually with something the mainstream brands don't.
Oak & Oscar
The Humboldt Seven Year
39.5mm · Automatic$2,400
Shared: GMT, Chronograph, Date · Automatic
Oak & Oscar
Team Shuster Humboldt
39.5mm · Automatic$2,022
Shared: GMT, Chronograph, Date · Automatic
Oak & Oscar
The Ashland
39.5mm · Automatic$1,850
Shared: GMT, Chronograph, Date · Automatic
Oak & Oscar
The Humboldt 12-hr
39.5mm · Automatic$1,750
Shared: GMT, Chronograph, Date · Automatic
Echo/Neutra
1956 3H
40mm · Automatic$1,025
Shared: GMT, Moonphase, Date · Automatic
Traska
Freediver Arctic
40mm · Automatic$735
Shared: Chronograph, Date · Automatic
Christopher Ward
The Twelve
40mm · Automatic$1,495
Shared: GMT, Moonphase, Date · Automatic
Gruppo Gamma
Field III GMT Date
40mm · Automatic$459
Shared: GMT, Date · Automatic
Traska
Commuter Carbon Black
40mm · Automatic$700
Shared: Chronograph, Date · Automatic
Traska
Venturer GMT
40mm · Automatic$785
Shared: GMT, Chronograph · Automatic
Lorca
MODEL No.2 CHRONOGRAPH
37mm · Automatic$2,750
Shared: GMT, Chronograph · Automatic
Christopher Ward
C60 Pro 300 Vintage
42mm · Automatic$1,550
Shared: Moonphase, Date · Automatic
Christopher Ward
C60 Trident GMT 300
40mm · Automatic$1,450
Shared: GMT · Automatic
Echo/Neutra
Averau 39 3H
39mm · Automatic$840
Shared: Moonphase, Date · Automatic
Christopher Ward
C60 Atoll 300
40mm · Automatic$1,320
Shared: Date · Automatic
Echo/Neutra
Cristallo Professional Diver 500m
42mm · Automatic$1,450
Shared: Moonphase, Date · Automatic
Echo/Neutra
1956 Chrono
40mm · Manual winding chronograph$2,060
Shared: GMT, Chronograph, Moonphase, Date · Same size
Gruppo Gamma
Field III GMT
40mm · Automatic$459
Shared: GMT · Automatic
Traska
Seafarer Charcoal
40mm · Automatic$665
Shared: Chronograph · Automatic
Boldr
Expedition Enigmath
41mm · Automatic$599
Automatic · Same size
Boldr
Odyssey 40mm
40mm · Automatic$799
Automatic · Same size
Gruppo Gamma
Vanguard Steel Date
42mm · Automatic$790
Shared: Date · Automatic
Gruppo Gamma
Vanguard Weathered Date
42mm · Automatic$790
Shared: Date · Automatic
Boldr
Globetrotter GMT
40mm · Automatic$469
Automatic · Same size
Boldr
Marine
40mm · Automatic$439
Automatic · Same size
RZE
Valour 38
38mm · Automatic$399
Shared: Date · Automatic
Brew
8-Bit V2
40mm · Automatic$395
Shared: Chronograph · Automatic
RZE
Fortitude GMT
41mm · Automatic GMT$719
Shared: GMT · Same size
RZE
Resolute
40mm · Automatic$759
Automatic · Same size
RZE
Resolute Type A
39mm · Automatic$499
Automatic · Same size
Lorca
MODEL No.1 GMT
36mm · Automatic$1,875
Shared: GMT · Automatic
anOrdain
Model 1
41mm · Automatic$3,804
Automatic · Same size
anOrdain
Model 2
41mm · Automatic$2,673
Automatic · Same size
Brew
Metric - Digital Blend
40mm · Automatic$425
Automatic · Same size
anOrdain
Model 2 Porcelain
39.5mm · Automatic$2,356
Automatic · Same size
anOrdain
Model 3 Method
39mm · Automatic$4,693
Automatic · Same size
Steps up from here· 36
Where the same idea goes when budget isn't the constraint.
Sinn
105 St Sa UTC
41mm · Automatic$1,998
Shared: GMT, Date · Automatic
Sinn
144 St DIAPAL
41mm · Automatic$4,428
Shared: GMT, Chronograph, Date · Automatic
Sinn
EZM 13.1
41mm · Automatic$3,780
Shared: Chronograph, Date · Automatic
Sinn
103 St DIAPAL
41mm · Automatic$4,320
Shared: GMT, Chronograph, Date · Automatic
Nivada Grenchen
Depthmaster
39mm · Automatic$1,050
Shared: GMT · Automatic
Nivada Grenchen
Antarctic Spider
38mm · Automatic$945
Shared: GMT, Date · Automatic
Glycine
Airman GMT
42mm · Automatic$2,700
Shared: GMT, Date · Automatic
Glycine
Combat Sub Sport GMT Bronze
42mm · Automatic$2,995
Shared: GMT, Date · Automatic
Glycine
Combat Sub Box Ceramic
41mm · Automatic$1,800
Shared: Date · Automatic
Glycine
Combat Sub Sport
39mm · Automatic$1,850
Shared: Date · Automatic
Bell & Ross
BR V2-94 R.S.18
41mm · Automatic$5,616
Shared: Chronograph, Date · Automatic
Bell & Ross
BR-05 GMT Sky Blue
41mm · Automatic$6,264
Shared: GMT, Date · Automatic
Tudor
Black Bay Pro
39mm · Automatic$5,075
Shared: GMT · Automatic
Bell & Ross
BR V2-94 BELLYTANKER BRONZE
41mm · Automatic$6,264
Shared: Chronograph, Date · Automatic
Nivada Grenchen
Antarctic Diver Aquamar
38mm · Automatic$1,050
Shared: GMT · Automatic
Nivada Grenchen
Antarctic Erotic
38mm · Automatic$1,769
Shared: GMT · Automatic
Oris
Big Crown ProPilot Big Date
41mm · Automatic$2,600
Shared: Date · Automatic
Oris
Divers Sixty‑Five
40mm · Automatic$3,000
Shared: Date · Automatic
Oris
Divers Sixty‑Five 12h Calibre 400
40mm · Automatic$4,300
Shared: Date · Automatic
Oris
Divers Sixty‑Five Chronograph
40mm · Automatic$4,700
Shared: Chronograph · Automatic
Bell & Ross
BR 123 24H
42mm · Automatic$3,337
Shared: GMT, Date · Automatic
Norqain
Adventure 40mm
40mm · Automatic$4,283
Automatic · Same size
Norqain
Adventure NEVEREST 40mm Limited Edition
40mm · Automatic$5,028
Automatic · Same size
Tudor
Black Bay 58
39mm · Automatic$5,350
Automatic · Same size
Longines
HYDROCONQUEST
39mm · Automatic$2,350
Automatic · Same size
Longines
HYDROCONQUEST GMT
41mm · Automatic$3,350
Automatic · Same size
Longines
HYDROCONQUEST MESH
41mm · Automatic$2,350
Automatic · Same size
Norqain
Adventure Chrono 41mm NHL Limited Edition
41mm · Automatic$6,204
Shared: Chronograph · Automatic
Norqain
Freedom 60 Chrono 40mm Enjoy Life Special Edition
40mm · Automatic$6,543
Shared: Chronograph · Automatic
Tudor
Pelagos FXD GMT
42mm · Automatic$5,475
Shared: GMT · Automatic
Tudor
Black Bay 58 925
39mm · Automatic$5,600
Automatic · Same size
Longines
HYDROCONQUEST
41mm · Automatic$2,000
Automatic · Same size
NOMOS Glashütte
Autobahn neomatik 41 date sports gray
41mm · Automatic$5,690
Automatic · Same size
NOMOS Glashütte
Club Sport neomatik 42 date black
42mm · Automatic$5,050
Automatic · Similar size
NOMOS Glashütte
Club Sport neomatik Worldtimer blue
40mm · Automatic$5,760
Automatic · Same size
NOMOS Glashütte
Tangente Sport neomatik 42 date marine black
42mm · Automatic$6,030
Automatic · Similar size
In the same price band· 6
Comparable watches at roughly the same money. Often the deciding click for a new buyer.
Orient
75th Anniversary RA-AC0Q12L30B
39.9mm · Automatic$405
Shared: Date · Automatic
Orient
AC0Q-40 Diver Watch
39.9mm · Automatic$370
Shared: Date · Automatic
Orient
AC0Q-40 RA-AC0Q05P10B
39.9mm · Automatic$355
Shared: Date · Automatic
Orient
Peanuts 75th Anniversary Limited Edition Diver
39.9mm · Automatic$435
Shared: Date · Automatic
Nivada Grenchen
Chronoking Mecaquartz
38mm · Mecaquartz Chronograph$610
Shared: GMT, Chronograph · Similar size
Nivada Grenchen
F77 Chrono Mecaquartz
38mm · Mecaquartz Chronograph$740
Shared: Chronograph · Similar size
Direct homages· 9
Watches that wear the same design language — close enough that a stranger might confuse them across the room.
Sugess
Seestern Vintage S407 600T
39mm · Automatic$249
Shared: GMT, Chronograph, Moonphase, Date · Automatic
Sugess
Pilot Master SUPILOT (Bronze)
41mm · Automatic$449
Shared caliber (Seagull ST2130/Seiko NH35) · Shared: GMT, Chronograph, Moonphase
Sugess
Seestern 62MAS V3
39mm · Automatic$199
Shared: GMT, Moonphase, Date · Automatic
Sugess
Seestern DOX V3
42mm · Automatic$199
Shared: GMT, Moonphase, Date · Automatic
Seestern
S450 Ocean Star
40mm · Automatic$299
Shared: GMT, Date · Automatic
Seestern
Sub 300 V4
42mm · Automatic$10
Shared: GMT, Date · Automatic
Seestern
S446 GMT
39.5mm · Automatic GMT$299
Shared: GMT, Date · Same size
Seestern
S471 Double Crown Diver
38mm · Automatic$179
Shared: Date · Automatic
Tudor
Black Bay
41mm · Automatic0
Automatic · Same size