Side by side
Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsBorealis Watch Co. Caloura 300m
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
8 of 29 specs differDiameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Caloura 300m42mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Caloura 300m40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Caloura 300m300m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Caloura 300m$275
Full specifications
Case
5 specsDiameter
41mm
42mm
Thickness
13mm
13.9mm
Lug-to-Lug
43.5mm
44.20mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
1 specsLume
None
BGW9
Movement
1 specsCaliber
Sellita SW220-1
NH35
Pricing
1 specsMSRP
$1,800
$275
Follow this matchup
Get a note when Marathon OSAR-D (Original SAR with Date) Automatic 41mm vs Borealis Watch Co. Caloura 300m gets more votes, a community discussion, or a price drop. No account needed.
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Borealis Watch Co. Caloura 300mvsFortis Marinemaster M-40Borealis Watch Co. Caloura 300mvsFortis Marinemaster M-44 DLCBorealis Watch Co. Caloura 300mvsFortis Marinemaster M-44Borealis Watch Co. Caloura 300mvsSpinnaker Hull CommanderMarathon OSAR-D (Original SAR with Date) Automatic 41mmvsSpinnaker Tesei TitaniumMarathon Arctic OSAR 41mm AutomaticvsMarathon OSAR-D (Original SAR with Date) Automatic 41mm