Finding alternatives to
Spinnaker Black Onyx
Ref. hull-titanium-bronze-automatic-lapidary-limited-edition-black-onyx-sp-5145-03
45 watches that match on case size, movement family, and price band. Sorted by how close the match is.
Case
42mm
Movement
Automatic
Category
Diver
MSRP
$425
Most similar· 12
The closest match overall — same case size, similar movement family, comparable price. Often the deciding click for a new buyer.
Tudor
Black Bay
41mm · Automatic0
Automatic · Same size
Orient
Kamasu
41.8mm · Automatic$375
Common cross-shop · Automatic
Seiko
Prospex Sea
43.8mm · Automatic$625
Common cross-shop · Automatic
Seiko
Prospex Sea PADI Special Edition
43.8mm · Automatic$625
Common cross-shop · Automatic
Seiko
Prospex Sea Save the Ocean Special Edition
43.8mm · Automatic$650
Common cross-shop · Automatic
Orient
AA08 Diver Watch
41.8mm · Automatic$390
Common cross-shop · Automatic
Orient
RA-AC0K Diver Watch
43.4mm · Automatic$455
Common cross-shop · Automatic
Hamilton
Khaki Field King Day-Date
40mm · Automatic$845
Common cross-shop · Automatic
Citizen
Promaster Diver Automatic
44mm · Automatic$469
Common cross-shop · Automatic
Marathon
Black
41mm · Automatic$600
Common cross-shop · Automatic
Marathon
Black
41mm · Mechanical$780
Common cross-shop · Same size
Tissot
PR516
38mm · Automatic$825
Common cross-shop · Automatic
Pricier alternatives· 12
Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.
Hamilton
Khaki Navy Scuba Automatic GMT 43mm Bronze
43mm · Automatic$1,675
Common cross-shop · Automatic
Seiko
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition
42mm · Automatic$1,750
Common cross-shop · Automatic
Hamilton
Khaki Navy Frogman Titanium Auto
46mm · Automatic$1,675
Common cross-shop · Automatic
Marathon
Anthracite Black
41mm · Automatic$2,100
Common cross-shop · Automatic
Marathon
Black on Rubber Strap
41mm · Automatic$1,800
Common cross-shop · Automatic
Hamilton
Khaki Navy BeLOWZERO Auto Titanium
46mm · Automatic$2,175
Common cross-shop · Automatic
Seiko
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch
42.6mm · Automatic$3,600
Common cross-shop · Automatic
Seiko
Prospex Sea
43.5mm · Automatic$1,500
Common cross-shop · Automatic
Tudor
Black Bay Ceramic
41mm · Automatic$6,125
Automatic · Same size
Citizen
Promaster Fujitsubo
41mm · Automatic$1,195
Common cross-shop · Automatic
Marathon
Arctic White on Rubber Strap
41mm · Automatic$1,800
Common cross-shop · Automatic
Tudor
Pelagos
40mm · Automatic$6,025
Automatic · Similar size
Looks like this· 9
Watches that wear the same design language — close enough that a stranger might confuse them across the room.
Pagani Design
PD-1668A
43mm · Automatic$128
Common cross-shop · Automatic
Pagani Design
PD-1671 V2
42mm · Automatic$158
Common cross-shop · Automatic
Pagani Design
PD-1767
41mm · Automatic$135
Common cross-shop · Automatic
Sugess
Seestern S462 Titanium GMT Pro Diver LE
40mm · Automatic GMT$449
Similar size · Sapphire
Sugess
Ocean Star S421
40mm · Automatic$449
Automatic · Similar size
Sugess
Ocean Star S450 YM
40mm · Automatic$449
Automatic · Similar size
Seestern
Sub 300 V4
42mm · Automatic$10
Automatic · Same size
Seestern
S456 GMT
41mm · Automatic GMT$299
Same size · Sapphire
Seestern
S471 Double Crown Diver
38mm · Automatic$179
Automatic · Sapphire
Microbrand picks· 12
Independent makers covering the same brief — usually with something the mainstream brands don't.
Spinnaker
Atlantic Blue
42mm · Automatic$179
Shared caliber (SII NH35A) · Automatic
Spinnaker
Atlantic Blue
42mm · Automatic$420
Shared caliber (SII NH35A) · Automatic
Spinnaker
Matte Black
42mm · Automatic$625
Shared caliber (SII NH35A) · Automatic
Zelos
DLC - Blue Meteorite
43mm · Automatic$599
Common cross-shop · Automatic
Phoibos
Eagle Ray
41mm · Automatic$360
Shared caliber (SII NH35A) · Automatic
Phoibos
Wave Master
42mm · Automatic$309
Shared caliber (SII NH35A) · Automatic
Islander
Islander Sands Point Titanium Diver with Grey Whale Tail Dial #ISL-259
43mm · Automatic$499
Automatic · Same size
Yema
Titanium
43mm · Automatic$13,000
Common cross-shop · Automatic
HELM
Khuraburi Titanium
42mm · Automatic$375
Automatic · Same size
Phoibos
Argo
40.5mm · Automatic$345
Shared caliber (SII NH35A) · Automatic
Zelos
Aventurine
41mm · Automatic$599
Common cross-shop · Automatic
Zelos
Br - Onyx
42mm · Automatic$529
Common cross-shop · Automatic