
Finding alternatives to
Sinn 240 St GZ
Ref. 240 St GZ
57 watches that match on case size, movement family, and price band. Sorted by how close the match is.
Case
43mm
Movement
Automatic
Category
Tool
MSRP
$2,311
ComplicationsDateDay-Date
Most similar· 12
The closest match overall — same case size, similar movement family, comparable price. Often the deciding click for a new buyer.

Sinn
EZM 12
44mm · Automatic$3,942
Shared: Date, Day-Date · Automatic

Sinn
836
43mm · Automatic$2,149
Shared: Date · Automatic

Sinn
6096
41.5mm · Automatic$3,478
Shared: Date · Automatic

Glycine
Combat Sub
42mm · Automatic$1,850
Shared: Date · Automatic

Glycine
Combat Sub Sport GMT
42mm · Automatic$2,995
Shared: Date · Automatic

Glycine
Airman SST GMT
43mm · Automatic$3,400
Shared: Date · Automatic

Bell & Ross
BR 123 24H
42mm · Automatic$3,337
Shared: Date · Automatic

Bell & Ross
BR 126 AÉRONAVALE
43mm · Automatic$4,309
Shared: Date · Automatic

Oris
Big Crown ProPilot Big Day Date
44mm · Automatic$2,900
Shared: Date · Automatic

Longines
LEGEND DIVER 42
42mm · Automatic$2,850
Automatic · Same size

Norqain
Adventure Sport JP 42mm Midnight Blue
42mm · Automatic$3,471
Automatic · Same size

Oris
Dat Watt Limited Edition II
43.5mm · Automatic$3,300
Shared: Date · Automatic
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
RA-AC0K Diver Watch
43.4mm · Automatic$455
Shared: Date · Automatic

Orient
RA-AC0K05G00B LE
43.4mm · Automatic$450
Shared: Date · Automatic

Orient
M-Force AC0N
45mm · Automatic$555
Shared: Date · Automatic

Seiko
Prospex Sea
43.8mm · Automatic$625
Automatic · Same size

Seiko
Prospex Sea PADI Special Edition
43.8mm · Automatic$625
Automatic · Same size

Seiko
Prospex Sea Save the Ocean Special Edition
43.8mm · Automatic$650
Automatic · Same size

Hamilton
Khaki Field Day Date Auto
42mm · Automatic$895
Automatic · Same size

Hamilton
Khaki Field Pioneer Automatique
42mm · Automatic$895
Automatic · Same size

Tissot
T-Race
41mm · Automatic$875
Automatic · Similar size

Nivada Grenchen
Antarctic Glacier
35mm · Automatic$945
Shared: Date · Automatic

Nivada Grenchen
Antarctic Spider
38mm · Automatic$945
Shared: Date · Automatic

Citizen
Promaster Diver Automatic
44mm · Automatic$469
Automatic · Same size
Pricier alternatives· 12
Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.

Sinn
6012
41.5mm · Automatic$5,929
Shared: Date, Day-Date · Automatic

Sinn
140 St S
44mm · Automatic$4,957
Shared: Date · Automatic

Sinn
6052
41.5mm · Automatic$5,929
Shared: Date, Day-Date · Automatic

Bell & Ross
BR-05 Chrono Patrouille de France
42mm · Automatic$8,100
Shared: Date · Automatic

Oris
Aquis Chronograph
43.5mm · Automatic$5,000
Shared: Date · Automatic

Oris
Great Barrier Reef Limited Edition IV
43.5mm · Automatic$4,750
Shared: Date · Automatic

Norqain
Independence Skeleton 42mm Grey Gold
42mm · Automatic$5,639
Automatic · Same size

Bell & Ross
BR V3-94 A521
43mm · Automatic$5,184
Shared: Date · Automatic

Tudor
Black Bay 68
43mm · Automatic$5,475
Common cross-shop · Automatic

Tudor
Pelagos FXD
42mm · Automatic$5,025
Common cross-shop · Automatic

Norqain
Independence JP Black Mother Of Pearl 42mm
42mm · Automatic$5,451
Automatic · Same size

Bell & Ross
BR 03-92 DIVER BLUE BRONZE SAPPHIRE BEZEL
42mm · Automatic$8,532
Shared: Date · Automatic
Looks like this· 9
Watches that wear the same design language — close enough that a stranger might confuse them across the room.

Seestern
Sub 300 V4
42mm · Automatic$10
Shared: Date · Automatic

Sugess
Seestern DOX V3
42mm · Automatic$199
Shared: Date · Automatic

Sugess
Seestern S434 Pro Diver
40mm · Automatic$249
Shared: Date · Automatic

Sugess
Ocean Star S450 YM
40mm · Automatic$449
Shared: Date · Automatic

Seestern
S450 Ocean Star
40mm · Automatic$299
Shared: Date · Automatic

Pagani Design
PD-1668A
43mm · Automatic$128
Automatic · Same size

Pagani Design
PD-1671
42mm · Automatic$158
Automatic · Same size

Pagani Design
PD-1685
42mm · Automatic$171
Automatic · Same size

Seestern
S471 Double Crown Diver
38mm · Automatic$179
Shared: Date · Automatic
Microbrand picks· 12
Independent makers covering the same brief — usually with something the mainstream brands don't.

Echo/Neutra
Cristallo Professional Diver 500m
42mm · Automatic$1,450
Shared: Date · Automatic

Gruppo Gamma
Vanguard Steel Date
42mm · Automatic$790
Shared: Date · Automatic

Gruppo Gamma
Vanguard Weathered Date
42mm · Automatic$790
Shared: Date · Automatic

Christopher Ward
C60 Sapphire Edge
40mm · Automatic$1,495
Shared: Date · Automatic

Christopher Ward
C63 Sealander GMT
42mm · Automatic$1,675
Automatic · Same size

Marloe Watch Company
Sceptre
42mm · Automatic$507
Automatic · Same size

Traska
Freediver Arctic
40mm · Automatic$735
Shared: Date · Automatic

Christopher Ward
C1 Moonglow
40mm · Automatic$3,050
Shared caliber (SW 220-1) · Automatic

Echo/Neutra
1956 3H
40mm · Automatic$1,025
Shared: Date · Automatic

Venezianico
Nereide Tungsteno 42
42mm · Automatic$975
Automatic · Same size

Formex
Essence Leggera FortyThree
43mm · Automatic$2,520
Automatic · Same size

Fortis
Amber Orange
44mm · Automatic$5,120
Automatic · Same size