
Finding alternatives to
Serica Ref. 5303 Diving Chronometer
Ref. 5303-1-diving-chronometer
46 watches that match on case size, movement family, and price band. Sorted by how close the match is.
Case
39mm
Movement
Automatic
Category
dive
MSRP
$1,768
ComplicationsCOSC
Microbrand picks· 12
Independent makers covering the same brief — usually with something the mainstream brands don't.

Serica
Ref. 5330 Diving Chronometer Date
39mm · Automatic$2,005
Same family (Diving Chronometer) · Shared: COSC

Traska
Seafarer Charcoal
40mm · Automatic$665
Automatic · Same size

Christopher Ward
C65 Sandhurst Series 2
40mm · Automatic$1,375
Automatic · Same size

Echo/Neutra
1956 3H
40mm · Automatic$1,025
Automatic · Same size

Echo/Neutra
Averau 39 3H
39mm · Automatic$840
Automatic · Same size

Echo/Neutra
Averau 39 Moon Phase
39mm · Automatic$1,085
Automatic · Same size

Tornek-Rayville
CISO M38 Field
38mm · Automatic$695
Automatic · Same size

Tornek-Rayville
CISO M38 MAC V SOG
38mm · Automatic$745
Automatic · Same size

Gruppo Gamma
Field III
40mm · Automatic$439
Automatic · Same size

Gruppo Gamma
Field III GMT
40mm · Automatic$459
Automatic · Same size

Gruppo Gamma
Field III GMT Date
40mm · Automatic$459
Automatic · Same size

Tornek-Rayville
Paradive G3 12-hr Acrylic Date
41.25mm · Automatic$949
Automatic · Sapphire
Most similar· 12
The closest match overall — same case size, similar movement family, comparable price. Often the deciding click for a new buyer.

Glycine
Sea Kraken
39mm · Automatic$1,600
Automatic · Same size

Norqain
Adventure Sport 37mm Green
37mm · Automatic$3,446
Automatic · Similar size

Norqain
Adventure Sport 37mm Purple
37mm · Automatic$3,446
Automatic · Similar size

Norqain
Adventure Sport 37mm White
37mm · Automatic$2,542
Automatic · Similar size

Longines
SPIRIT
37mm · Automatic$2,850
Automatic · Similar size

Glycine
Airman GMT
42mm · Automatic$2,700
Automatic · Sapphire

Glycine
Airman Purist
42mm · Automatic$2,700
Automatic · Sapphire

Longines
SPIRIT
40mm · Automatic$2,550
Automatic · Same size

Oris
Divers Sixty‑Five
40mm · Automatic$3,000
Automatic · Same size

Oris
Divers Sixty‑Five Cotton Candy
38mm · Automatic$2,950
Automatic · Same size

Oris
Divers Sixty‑Five Date
40mm · Automatic$2,850
Automatic · Same size

Longines
CONQUEST
41mm · Automatic$2,400
Automatic · Similar size
Cheaper alternatives· 7
If the price is the only thing keeping you off this watch, these get you most of the way there for less.

Aevig
Thule sportswatch
39mm · Automatic$593
Automatic · Same size

Aevig
Thule GMT
39mm · Automatic$755
Automatic · Same size

Orient
Classic Watch
40mm · Automatic$245
Automatic · Same size

Aevig
HULDRA automatic divewatch
42mm · Automatic$647
Automatic · Sapphire

Orient
75th Anniversary Stretto Date
38.5mm · Automatic$395
Automatic · Same size

Orient
Stretto Date
38.5mm · Automatic$360
Automatic · Same size

Smith & Bradley
Atlantis A2 Auto
44mm · Automatic$789
Automatic · Sapphire
Pricier alternatives· 12
Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.

Norqain
Independence Skeleton 40mm Anthracite Turquoise
40mm · Automatic$4,407
Automatic · Same size

Norqain
Independence Skeleton 40mm DLC Anthracite Orange
40mm · Automatic$5,865
Automatic · Same size

Norqain
Adventure Sport 37mm
37mm · Automatic$4,271
Automatic · Similar size

Bell & Ross
BR-05 Diamond
40mm · Automatic$24,829
Automatic · Same size

Longines
LONGINES SPIRIT ZULU TIME
39mm · Automatic$5,200
Automatic · Same size

Longines
SPIRIT ZULU TIME
39mm · Automatic$3,550
Automatic · Same size

Longines
SPIRIT ZULU TIME 1925
39mm · Automatic$4,700
Automatic · Same size

Oris
Divers Sixty‑Five 12h Calibre 400
40mm · Automatic$4,300
Automatic · Same size

Oris
Divers Sixty‑Five Calibre 400
38mm · Automatic$4,100
Automatic · Same size

Bell & Ross
BR-05 GMT Sky Blue
41mm · Automatic$6,264
Automatic · Similar size

Bell & Ross
BR-X3 Blue Steel
41mm · Automatic$7,992
Automatic · Similar size

Tudor
Monarch
39mm · Automatic$5,875
Automatic · Same size
Looks like this· 3
Watches that wear the same design language — close enough that a stranger might confuse them across the room.


