Which has better water resistance, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Lum-Tec B73?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is rated to 300m versus 200m for the Lum-Tec B73.

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsLum-Tec B73

Q: Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Lum-Tec B73?

At MSRP the Lum-Tec B73 is the cheaper of the two at $463, against $1,800 for the Marathon OSAR-D (Original SAR with Date) Automatic 41mm — a $1,337 gap before any retailer discounting.

Q: Which is bigger, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Lum-Tec B73?

The Lum-Tec B73 wears larger at 44mm versus 41mm for the Marathon OSAR-D (Original SAR with Date) Automatic 41mm — a 3mm difference across the dial.

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

Marathon OSAR-D (Original SAR with Date) Automatic 41mm

41mm-original-sar-w-date-osar-d

MSRP $1,800

Lum-Tec B73

combat-b73-pre-order

MSRP $463

At a glance

12 of 29 specs differ

Diameter

OSAR-D (Original SAR with Date) Automatic 41mm41mm

B7344mm

Power Reserve

OSAR-D (Original SAR with Date) Automatic 41mm40h

B7340h

Water Resistance

OSAR-D (Original SAR with Date) Automatic 41mm300m

B73200m

MSRP

OSAR-D (Original SAR with Date) Automatic 41mm$1,800

B73$463

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Domed Sapphire

Dial Color

Black

B73

Movement

2 specs

Caliber

Sellita SW220-1

Ronda 515

Type

Automatic

Quartz

Pricing

1 specs

MSRP

$1,800

$463

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