Side by side
Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsBorealis Watch Co. Neptuno
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
Neptuno40.00mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Neptuno40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Neptuno300m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Neptuno$390
Full specifications
Case
5 specsDiameter
41mm
40.00mm
Thickness
13mm
14.10mm
Lug-to-Lug
43.5mm
47.20mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
1 specsLume
None
BGW9
Movement
1 specsCaliber
Sellita SW220-1
NH38
Pricing
1 specsMSRP
$1,800
$390
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