
Finding alternatives to
Seiko Prospex Sea
Ref. srpl11
144 watches that match on case size, movement family, and price band. Sorted by how close the match is.
Case
41.7mm
Movement
Automatic
Category
Diver
MSRP
$595
Microbrand picks· 104
Independent makers covering the same brief — usually with something the mainstream brands don't.

Marloe Watch Company
Morar 310
42mm · Automatic$697
Pro diver · Automatic

Baltic
Aquascaphe Titanium
41mm · Automatic$788
Pro diver · Automatic

Borealis Watch Co.
Jamanta
42.50mm · Automatic$415
Pro diver · Automatic

Formex
Reef 42 mm
42mm · Automatic$2,414
Pro diver · Automatic

Phoibos
Great Wall
42mm · Automatic$465
Pro diver · Automatic

CWC
1980 RN Divers Automatic Re-Issue Watch
41mm · Automatic$2,458
Pro diver · Automatic

CWC
Arctic Radar Automatic Diver Watch
41mm · Automatic$1,333
Pro diver · Automatic

CWC
Automatic Divers Watch Mk.2 Black
41mm · Automatic$1,249
Pro diver · Automatic

CWC
Automatic Divers Watch Mk.2 Black with Date
41mm · Automatic$1,249
Pro diver · Automatic

HELM
Khuraburi
42mm · Automatic$310
Pro diver · Automatic

Phoibos
Apollo Titanium
41mm · Automatic$575
Pro diver · Automatic

Venezianico
Nereide Bronzo
42mm · Automatic$1,250
Pro diver · Automatic

Venezianico
Nereide Titanio
42mm · Automatic$1,250
Pro diver · Automatic

Astor + Banks
Tobacco
40mm · Automatic$1,149
Pro diver · Automatic

Borealis Watch Co.
Caloura 300m
42mm · Automatic$275
Pro diver · Automatic

Borealis Watch Co.
Estoril 300 GMT
41.50mm · Automatic$600
Pro diver · Automatic

Borealis Watch Co.
Sea Storm MK2
41.50mm · Automatic$475
Pro diver · Automatic

Fortis
Amber Orange
40mm · Automatic$3,520
Pro diver · Automatic

HELM
Khuraburi Titanium
42mm · Automatic$375
Pro diver · Automatic

Phoibos
Wave Master
42mm · Automatic$309
Pro diver · Automatic

Spinnaker
Aquamarine
40mm · Automatic$650
Pro diver · Automatic

Zelos
Diver - Flare
40mm · Automatic$529
Pro diver · Automatic

Marloe Watch Company
Sceptre
42mm · Automatic$507
Tool diver · Automatic

Marloe Watch Company
Sceptre S2
42mm · Automatic$507
Tool diver · Automatic

Phoibos
Depth Hunter
40mm · Automatic$470
Pro diver · Automatic

Geckota
Satin Reef Green
42mm · Automatic$349
Pro diver · Automatic

HELM
Vanuatu
42mm · Automatic$285
Pro diver · Automatic

Spinnaker
TIGER EYE
42mm · Automatic$520
Pro diver · Automatic

Spinnaker
Alligator Green
42mm · Automatic$375
Pro diver · Automatic

Sternglas
Marus
42mm · Automatic$485
Tool diver · Automatic

Sternglas
Marus 2.0
41mm · Automatic$593
Tool diver · Automatic

Sternglas
Merion
41mm · Automatic$701
Tool diver · Automatic

Yema
Steel
43mm · Automatic$13,000
Pro diver · Automatic

Dryden
Steel 12 Hour 41mm
41mm · Automatic$650
Tool diver · Automatic

HELM
Komodo
40mm · Automatic$295
Pro diver · Automatic

Venezianico
Nereide Acquaforte
42mm · Automatic$1,000
Tool diver · Automatic

Venezianico
Nereide Ametista
42mm · Automatic$1,250
Tool diver · Automatic

Yema
39.5mm Automatic
39.5mm · Automatic$1,777
Pro diver · Automatic

Zelos
SS - Teal Meteorite
41mm · Automatic$499
Tool diver · Automatic

Nodus
Sector Deep
38mm · Automatic$650
Pro diver · Automatic

Nodus
Sector Deep - DLC Destro
38mm · Automatic$700
Pro diver · Automatic

Nodus
Sector Deep Pioneer
38mm · Automatic$675
Pro diver · Automatic

Oblvlo
DM Skeleton Dive
40mm · Automatic$194
Tool diver · Automatic

Yema
Titanium
43mm · Automatic$13,000
Pro diver · Automatic

Zelos
DLC - Blue Meteorite
43mm · Automatic$599
Pro diver · Automatic

Baltic
Aquascaphe Classic
39mm · Automatic$648
Tool diver · Automatic

Monta
Blue / Aluminum
40mm · Automatic$2,550
Pro diver · Automatic

Spinnaker
White Frost
43mm · Automatic$550
Pro diver · Automatic

Yema
Gilt Black
39mm · Automatic$1,699
Pro diver · Automatic

Zelos
Aventurine
41mm · Automatic$599
Tool diver · Automatic

Formex
Reef 39.5 mm
39.5mm · Automatic$2,230
Pro diver · Automatic

Fortis
Amber Orange
44mm · Automatic$5,120
Pro diver · Automatic

Fortis
Black Resin
44mm · Automatic$5,450
Pro diver · Automatic

Hemel
Gallant USAF Edition
40mm · Automatic$300
Tool diver · Automatic

Henry Archer
Sylva
40mm · Automatic$4,999
Tool diver · Automatic

Henry Archer
Yacht Blue
42mm · Automatic$3,299
Tool diver · Automatic

Islander
Islander Hudson "Harpoon Diver" 40mm Watch with Degrading Black Dial #ISL-302
40mm · Automatic$649
Tool diver · Automatic

Islander
Islander Northport Hi-Beat Automatic Dive Watch with Ocean Blue and White Ripple Dial #ISL-195
40.5mm · Automatic$499
Tool diver · Automatic

Lum-Tec
Marine 9
39mm · Automatic$463
Pro diver · Automatic

Wolbrook
Black "Tropic" Rubber Strap 40mm
40mm · Automatic$579
Tool diver · Automatic

Wolbrook
Black "Tropic" Rubber Strap
40mm · Automatic$539
Tool diver · Automatic

Baltic
Aquascaphe Bronze
39mm · Automatic$697
Tool diver · Automatic

Galo
Super200
39mm · Automatic$488
Tool diver · Automatic

Galo
Super200 Dark Edition
39mm · Automatic$488
Tool diver · Automatic

KUOE
SOMBRERO 90-011
38mm · Automatic$980
Tool diver · Automatic

Baltic
Aquascaphe Dual-Crown
39mm · Automatic$724
Tool diver · Automatic

Halios
Sunburst Blue
40mm · Automatic$765
Tool diver · Automatic

Henry Archer
Prism Purple Titanium
40mm · Automatic$5,499
Tool diver · Automatic

Islander
Islander Automatic GMT Dive Watch with Blue Waffle Dial #ISL-214
42mm · Automatic$499
Tool diver · Automatic

Islander
Islander Ice Blue Waffle Dial Automatic Dive Watch with AR DD Sapphire Crystal, and Luminous Ceramic Bezel Insert #ISL-67
42mm · Automatic$429
Tool diver · Automatic

Geckota
Amber Bezel
40mm · Automatic$349
Tool diver · Automatic

Henry Archer
Icewake
40mm · Automatic$4,999
Tool diver · Automatic

Vaer
Black
39mm · Automatic$679
Tool diver · Automatic

Vaer
Anacapa
39mm · Automatic$699
Tool diver · Automatic

Vaer
Standard
39mm · Automatic$699
Tool diver · Automatic

Maen
SHW.01
38mm · Automatic$503
Pro diver · Automatic

Maen
M1.1.5
38mm · Automatic$719
Pro diver · Automatic

Dan Henry
Orange
40mm · Automatic$310
Tool diver · Automatic

Farer
AQUA COMPRESSOR TITANIUM SERIES III
41.5mm · $1,350
Pro diver · Same size

Monta
Black
40mm · Automatic$1,850
Tool diver · Automatic

Helgray
Poseidon Diver (Automatic)
40mm · $249
Pro diver · Similar size

Lorier
Standard
39mm · Automatic$699
Tool diver · Automatic

Lorier
Standard
39mm · Automatic$699
Tool diver · Automatic

Lorier
Skyward
39mm · Automatic$599
Tool diver · Automatic

Lorier
Standard
39mm · Automatic$599
Tool diver · Automatic

Geckota
Ice White
38.5mm · Automatic$375
Tool diver · Automatic

Wolbrook
Black "Topic" Rubber Strap
38mm · Automatic$549
Tool diver · Automatic

Praesidus
Blue Tropic Rubber 38mm
38mm · Automatic$645
Tool diver · Automatic

Praesidus
Patina
44mm · Automatic$550
Tool diver · Automatic

William Wood
Standard
41mm · Automatic$995
Automatic · Same size

William Wood
Standard
41mm · Automatic$1,495
Automatic · Same size

William Wood
Standard
41mm · Automatic$995
Automatic · Same size

William Wood
Standard
41mm · Automatic$895
Automatic · Same size

Wolbrook
Camel Rally Leather Strap
40mm · Automatic$510
Automatic · Similar size

Nodus
Sector II Dive GMT
38mm · Automatic$575
Automatic · 3% less

Lum-Tec
Date
44mm · Automatic$999
Tool diver · Automatic

Christopher Ward
C65 Super Compressor Elite
40mm · Automatic$1,995
Automatic · Similar size

Ikepod
Seapod Bronze Archi
46mm · Automatic$2,808
Tool diver · Automatic

Ikepod
Seapod S001
46mm · Automatic$1,458
Tool diver · Automatic

Ikepod
Seapod S007
46mm · Automatic$1,458
Tool diver · Automatic

Dan Henry
White / Tropic 39mm
39mm · Automatic$310
Automatic · 48% less

Ikepod
Seapod S003
46mm · Automatic$1,566
Tool diver · Automatic

Cincinnati Watch Company
Desk Diver Professional Dive Watch Black & Orange
38mm · Manual$750
Tool diver · Diver-grade WR

Farer
AQUAMATIC
38.5mm · $875
Tool diver · Diver-grade WR
Steps up from here· 26
Where the same idea goes when budget isn't the constraint.

Seiko
Prospex Sea 1968 Heritage Diver's GMT
42mm · Automatic$1,500
Same family (Prospex Sea) · Pro diver

Seiko
Prospex Sea 1968 Heritage Diver's GMT Watch
42mm · Automatic$1,700
Same family (Prospex Sea) · Pro diver

Seiko
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition
42mm · Automatic$1,750
Same family (Prospex Sea) · Pro diver

Seiko
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition
42.7mm · Automatic$1,350
Same family (Prospex Sea) · Pro diver

DOXA
SUB 300
42.5mm · Automatic$2,890
Pro diver · Automatic

Marathon
Arctic White on Rubber Strap
41mm · Automatic$1,800
Pro diver · Automatic

Marathon
Black on Rubber Strap
41mm · Automatic$1,800
Pro diver · Automatic

Bremont
Blue / Green 40mm
40mm · Automatic$3,900
Pro diver · Automatic

Bremont
Green 40mm
40mm · Automatic$3,550
Pro diver · Automatic

Citizen
Promaster Fujitsubo
41mm · Automatic$1,195
Pro diver · Automatic

DOXA
SUB 300 Carbon
42.5mm · Automatic$4,390
Pro diver · Automatic

Marathon
Anthracite Black
41mm · Automatic$2,100
Pro diver · Automatic
Marathon
OD Green
41mm · Automatic$2,100
Pro diver · Automatic

Longines
LEGEND DIVER 59
42mm · Automatic$4,100
Pro diver · Automatic

Bremont
Black 43mm
43mm · Automatic$4,700
Pro diver · Automatic

Bremont
RNLI Orange
40mm · Automatic$3,795
Pro diver · Automatic

Longines
LEGEND DIVER
39mm · Automatic$3,850
Pro diver · Automatic

DOXA
SUB 200 C-GRAPH II
42mm · Automatic$2,890
Tool diver · Automatic

DOXA
DOXA Army
42.5mm · $2,490
Pro diver · Same size

Tissot
Seastar 1000 Powermatic 80 GMT
46mm · Automatic$1,375
Pro diver · Automatic

Tissot
Seastar 2000
46mm · Automatic$1,275
Pro diver · Automatic

Grand Seiko
SBGH289
43.8mm · Automatic$7,700
Tool diver · Automatic

Grand Seiko
SBGJ237
44.2mm · Automatic$7,600
Tool diver · Automatic

Grand Seiko
SBGE253
40.5mm · Spring Drive$6,900
Tool diver · Similar size

Hamilton
Khaki Navy Frogman Auto
41mm · Automatic$1,395
Automatic · Same size

Grand Seiko
SBGE277
44mm · Spring Drive$6,800
Tool diver · Diver-grade WR
In the same price band· 9
Comparable watches at roughly the same money. Often the deciding click for a new buyer.

Seiko
Prospex Sea PADI Special Edition
41.7mm · Automatic$650
Shared caliber (4R35) · Same family (Prospex Sea)

Seiko
Prospex Sea PADI Special Edition
43.8mm · Automatic$625
Shared caliber (4R35) · Same family (Prospex Sea)

Seiko
Prospex Sea Save the Ocean Special Edition
43.8mm · Automatic$650
Shared caliber (4R35) · Same family (Prospex Sea)

Seiko
Prospex Sea Save the Ocean Special Edition
42.4mm · Automatic$550
Same family (Prospex Sea) · Pro diver

Tissot
Seastar 1000
40mm · Automatic$875
Pro diver · Automatic

Tissot
Seastar Wilson WNBA
40mm · Automatic$875
Pro diver · Automatic

Citizen
Promaster Diver Automatic
44mm · Automatic$469
Pro diver · Automatic

Orient
SK Diver Retro (Revival)
41.7mm · Automatic$325
Automatic · Same size

Hamilton
Khaki Navy Scuba Auto
40mm · Automatic$975
Automatic · Similar size
Direct homages· 5
Watches that wear the same design language — close enough that a stranger might confuse them across the room.

Pagani Design
PD-1719
42.5mm · Automatic$154
Pro diver · Automatic

Pagani Design
PD-1702
42mm · Automatic$132
Tool diver · Automatic

Pagani Design
PD-1722
41mm · Automatic$128
Tool diver · Automatic

Pagani Design
PD-1685
42mm · Automatic$171
Tool diver · Automatic

DOXA
SUB 200 T.GRAPH
43mm · Automatic0
Tool diver · Automatic