Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 36mmvsCWC (Cabot Watch Company) RN300 Automatic Diver Mk.1 Tritium Watch With Date

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Add a watch
OSAR-D (Original SAR with Date) Automatic 36mm
MarathonOSAR-D (Original SAR with Date) Automatic 36mm
MSRP $1,200
RN300 Automatic Diver Mk.1 Tritium Watch With Date
CWC (Cabot Watch Company)RN300 Automatic Diver Mk.1 Tritium Watch With Date
MSRP $3,174
Buy from Marathon ↗
Buy used on eBay ↗
Buy from CWC (Cabot Watch Company) ↗
Buy used on eBay ↗

At a glance

10 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 36mm36mm
RN300 Automatic Diver Mk.1 Tritium Watch With Date40mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 36mm40h
RN300 Automatic Diver Mk.1 Tritium Watch With Date40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 36mm300m
RN300 Automatic Diver Mk.1 Tritium Watch With Date300m
MSRP
OSAR-D (Original SAR with Date) Automatic 36mm$1,200
RN300 Automatic Diver Mk.1 Tritium Watch With Date$3,174

Full specifications

Case

6 specs
Category
Diver
—
Diameter
36mm
40mm
Thickness
13mm
14.5mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Mineral
Dial Color
Black
—

Movement

1 specs
Caliber
Sellita SW220-1
ETA 2824

Pricing

1 specs
MSRP
$1,200
—
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Fortis Marinemaster M-40
Fortismicro

Marinemaster M-40

3 watches · 15 variantsMarinemaster
40mm·Automatic·300m WR
$3,520MSRP
—Used
Duckworth Prestex Swiss Diver 300 Metre
Duckworth Prestexmicro

Swiss Diver 300 Metre

3 variantsRef. swiss-diver-300-metre
40mm·Automatic·300m WR
$995MSRP
—Used
Borealis Watch Co. Bull Shark V2
Borealis Watch Co.micro

Bull Shark V2

10 variantsBull Shark V2
38mm·Automatic·300m WR
$495MSRP
—Used
Geckota Sea-Hunter Dive Watch
Geckotamicro

Sea-Hunter Dive Watch

6 variantsSea-Hunter
40mm·Automatic·200m WR
$349MSRP
—Used
Geckota Phalanx
Geckotamicro

Phalanx

8 variantsPhalanx
42mm·Automatic·300m WR
$349MSRP
—Used
Santurce Vulcain x Santurce Collection Collab
Santurcemicro

Vulcain x Santurce Collection Collab

Ref. vulcain-x-santurce-collection-collab
38mm·Automatic·200m WR
—MSRP
—Used
Baltic Aquascaphe MK2
Balticmicro

Aquascaphe MK2

4 variantsAquascaphe MK2
37mm·Automatic·200m WR
$680MSRP
—Used
Fathers Globetrotter Black – Orologio GMT Automatico Swiss Made – Nero 40 mm
Fathersmicro

Globetrotter Black – Orologio GMT Automatico Swiss Made – Nero 40 mm

3 variantsRef. globetrotter-black
40mm·Automatic·200m WR
$1,377MSRP
—Used
All alternatives to the OSAR-D (Original SAR with Date) Automatic 36mm →All alternatives to the RN300 Automatic Diver Mk.1 Tritium Watch With Date →
Explore the full catalog

Follow this matchup

Get a note when Marathon OSAR-D (Original SAR with Date) Automatic 36mm vs CWC (Cabot Watch Company) RN300 Automatic Diver Mk.1 Tritium Watch With Date gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

CWC (Cabot Watch Company) RN300 Automatic Diver Mk.1 Tritium Watch With DatevsFortis Marinemaster M-40Borealis Watch Co. Bull Shark V2vsCWC (Cabot Watch Company) RN300 Automatic Diver Mk.1 Tritium Watch With DateCWC (Cabot Watch Company) RN300 Automatic Diver Mk.1 Tritium Watch With DatevsFortis Marinemaster M-44 DLCCWC (Cabot Watch Company) RN300 Automatic Diver Mk.1 Tritium Watch With DatevsFortis Marinemaster M-44Marathon OSAR-D (Original SAR with Date) Automatic 36mmvsDuckworth Prestex Swiss Diver 300 MetreMarathon OSAR-D (Original SAR with Date) Automatic 36mmvsGeckota Sea-Hunter Dive Watch
Edit this comparisonAdd another watchExplore more 35–41mm watches