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Browse/Alternatives/Seiko Prospex Sea
Seiko Prospex Sea
Finding alternatives to

Alternatives to the Seiko Prospex Sea

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

Case
41.3mm
Movement
Automatic
Category
Diver
MSRP
$1,100
The short answer

The closest alternative to the Seiko Prospex Sea is the Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition ($1,400) — shared caliber (Seiko 6R55) and Same family (Prospex Sea). If price is the constraint, the Orient AC0Q-40 Diver Watch at $370 (vs $1,100 for the Prospex Sea) covers most of the same brief. From the independents, the Dryden Pathfinder is the standout microbrand take — common cross-shop and Pro diver. Stepping up, the DOXA SUB 300 ($2,890) is where the same idea goes with a bigger budget.

ColourwayPick a colourway to match a specific dial
48 matches

Microbrand picks· 12

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

Dryden Pathfinder
Drydenmicro

Pathfinder

9 variants
41mm·Automatic·201m WR
$650MSRP
vsCompare with the Seiko Prospex Sea
Borealis Watch Co. Caloura 300m
Borealis Watch Co.micro

Caloura 300m

4 variants
42mm·Automatic·300m WR
$275MSRP
vsCompare with the Seiko Prospex Sea
Zelos Swordfish 3
Zelosmicro

Swordfish 3

28 variants · Swordfish
40/42mm·Automatic·200m WR
$399MSRP
vsCompare with the Seiko Prospex Sea
Spinnaker Croft Pioneer
Spinnakermicro

Croft Pioneer

8 variants · Croft
42mm·Automatic·100m WR
$199MSRP
vsCompare with the Seiko Prospex Sea
Borealis Watch Co. Porto Covo
Borealis Watch Co.micro

Porto Covo

2 variants
40mm·Automatic·300m WR
$415MSRP
vsCompare with the Seiko Prospex Sea
Boldr Odyssey 40mm
Boldrmicro

Odyssey 40mm

9 variants
40mm·Automatic·300m WR
$799MSRP
vsCompare with the Seiko Prospex Sea
CWC Arctic Radar Automatic Diver Watch
CWCmicro

Arctic Radar Automatic Diver Watch

 
41mm·Automatic·300m WR
$1,333MSRP
vsCompare with the Seiko Prospex Sea
CWC RN81 Clearance Diver Automatic Watch
CWCmicro
RN Divers

RN81 Clearance Diver Automatic Watch

2 variants
41mm·Automatic·300m WR
$1,875MSRP
vsCompare with the Seiko Prospex Sea
Spinnaker Hull Diver
Spinnakermicro

Hull Diver

10 variants · Hull
42mm·Automatic·300m WR
$375MSRP
vsCompare with the Seiko Prospex Sea
Astor + Banks Sea Ranger M2
Astor + Banksmicro

Sea Ranger M2

8 variants · Sea Ranger
40mm·Automatic·300m WR
$1,149MSRP
vsCompare with the Seiko Prospex Sea
Zelos Spearfish 3
Zelosmicro

Spearfish 3

6 variants · Spearfish
40mm·Automatic·200m WR
$749MSRP
vsCompare with the Seiko Prospex Sea
Nodus Duality II
Nodusmicro

Duality II

3 variants
40mm·Automatic·300m WR
$875MSRP
vsCompare with the Seiko Prospex Sea

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.

Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition
Seiko

Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition

 
40mm·Automatic·300m WR
$1,400MSRP
vsCompare with the Seiko Prospex Sea
Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition
Seiko

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

 
40mm·Automatic·300m WR
$1,400MSRP
vsCompare with the Seiko Prospex Sea
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 Seiko Prospex Sea
Tissot Seastar 1000
Tissot

Seastar 1000

7 variants
40/43mm·Automatic·300m WR
$875MSRP
vsCompare with the Seiko Prospex Sea
Christopher Ward C60 Atoll 300
Christopher Ward
Atoll

C60 Atoll 300

Ref. C60-40ADA31S00W1-B0
40mm·Automatic·300m WR
$1,320MSRP
vsCompare with the Seiko Prospex Sea
Glycine Combat Sub Box Ceramic
Glycine

Combat Sub Box Ceramic

3 variants · Ref. GL0525
41mm·Automatic·200m WR
$1,800MSRP
vsCompare with the Seiko Prospex Sea
Christopher Ward C60 Trident Pro 300
Christopher Ward
Trident

C60 Trident Pro 300

3 variants · Trident
40mm·Automatic·300m WR
$1,095MSRP
vsCompare with the Seiko Prospex Sea
Yema Superman Heritage
Yema

Superman Heritage

2 variants · Superman
39mm·Automatic·300m WR
$1,004MSRP
vsCompare with the Seiko Prospex Sea
Glycine Combat Sub Sport
Glycine

Combat Sub Sport

8 variants · Ref. GL0487
42mm·Automatic·200m WR
$1,650MSRP
vsCompare with the Seiko Prospex Sea
Yema Superman Dato CMM.10
Yema

Superman Dato CMM.10

4 variants · Superman
39.5mm·Automatic·300m WR
$1,777MSRP
vsCompare with the Seiko Prospex Sea
Christopher Ward C60 Atoll 300
Christopher Ward
Atoll

C60 Atoll 300

2 variants · Atoll
40mm·Automatic·300m WR
$1,320MSRP
vsCompare with the Seiko Prospex Sea
DOXA SUB 200 II
DOXA

SUB 200 II

5 variants
44mm·Automatic·200m WR
$1,750MSRP
vsCompare with the Seiko Prospex Sea

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.

Orient AC0Q-40 Diver Watch
Orient
DiverAC0Q

AC0Q-40 Diver Watch

6 variants · AC0Q
39.9mm·Automatic·200m WR
$370MSRP
vsCompare with the Seiko Prospex Sea
Orient Diver Design 40
Orient
AC0Q

Diver Design 40

6 variants
39.9mm·Automatic·200m WR
$395MSRP
vsCompare with the Seiko Prospex Sea
Orient Mako-3 AA08 Diver Watch
Orient
DiverMako

Mako-3 AA08 Diver Watch

4 variants · Mako
41.8mm·Automatic·200m WR
$375MSRP
vsCompare with the Seiko Prospex Sea
Citizen Promaster Diver Automatic
Citizen

Promaster Diver Automatic

3 variants · Promaster
44mm·Automatic·200m WR
$469MSRP
vsCompare with the Seiko Prospex Sea
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 Seiko Prospex Sea
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 Seiko Prospex Sea
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 Seiko Prospex Sea
Seiko 5KX
Seiko
5 Sports SKX series

5KX

11 variants · 5 Sports SKX series
42.5mm·Automatic·100m WR
$350MSRP
vsCompare with the Seiko Prospex Sea
Citizen Tsuyosa Shore
Citizen

Tsuyosa Shore

2 variants · Tsuyosa
40mm·Automatic·100m WR
$495MSRP
vsCompare with the Seiko Prospex Sea
Seiko 5 Sports SKX series
Seiko

5 Sports SKX series

5 variants
38mm·Automatic·100m WR
$350MSRP
vsCompare with the Seiko Prospex Sea
Seiko 5 Sports SKX series MOONEYES Limited Edition
Seiko

5 Sports SKX series MOONEYES Limited Edition

 
42.5mm·Automatic·100m WR
$420MSRP
vsCompare with the Seiko Prospex Sea
Yema Pearldiver
Yema

Pearldiver

 
38mm·Automatic·100m WR
$491MSRP
vsCompare with the Seiko Prospex Sea

Pricier alternatives· 12

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

DOXA SUB 300
DOXA

SUB 300

8 variants
42.5mm·Automatic·300m WR
$2,890MSRP
vsCompare with the Seiko Prospex Sea
Yema Skin Diver CMM.20
Yema

Skin Diver CMM.20

3 variants · Skin Diver
39.5mm·Automatic·200m WR
$2,372MSRP
vsCompare with the Seiko Prospex Sea
DOXA SUB 200 C-GRAPH II
DOXA

SUB 200 C-GRAPH II

6 variants
42mm·Automatic·200m WR
$2,890MSRP
vsCompare with the Seiko Prospex Sea
Bremont Supermarine 300M
Bremont

Supermarine 300M

8 variants · Supermarine
40mm·Automatic·300m WR
$3,550MSRP
vsCompare with the Seiko Prospex Sea
Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition
Seiko

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

 
44mm·Automatic·200m WR
$3,300MSRP
vsCompare with the Seiko Prospex Sea
Breitling Avenger Automatic
Breitling

Avenger Automatic

6 variants · Avenger
42/43mm·Automatic·300m WR
$4,900MSRP
vsCompare with the Seiko Prospex Sea
Breitling Superocean Heritage B20 Automatic
Breitling

Superocean Heritage B20 Automatic

8 variants · Superocean Heritage
42/44/46mm·Automatic·200m WR
$5,800MSRP
vsCompare with the Seiko Prospex Sea
Fortis Flieger F-41
Fortis

Flieger F-41

4 variants · Ref. F-41
41mm·Automatic·200m WR
$2,530MSRP
vsCompare with the Seiko Prospex Sea
Blancpain Bathyscaphe
Blancpain
Fifty Fathoms

Bathyscaphe

6 variants · Fifty Fathoms
43mm·Automatic·300m WR
$17,100MSRP
vsCompare with the Seiko Prospex Sea
DOXA SUB 250T GMT
DOXA

SUB 250T GMT

9 variants
40mm·Automatic·250m WR
$2,790MSRP
vsCompare with the Seiko Prospex Sea
Longines HYDROCONQUEST MESH
Longines

HYDROCONQUEST MESH

2 variants · HydroConquest
41mm·Automatic·300m WR
$2,350MSRP
vsCompare with the Seiko Prospex Sea
Blancpain Bathyscaphe Quantième Complet Phases de Lune
Blancpain
Fifty Fathoms

Bathyscaphe Quantième Complet Phases de Lune

3 variants · Fifty Fathoms
43mm·Automatic·300m WR
$24,100MSRP
vsCompare with the Seiko Prospex Sea
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