Which has better water resistance, the Marathon OSAR-D (Original SAR with Date) Automatic 46mm or the Aera Instruments M-1?

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm is rated to 300m versus 100m for the Aera Instruments M-1.

Which has a longer power reserve, the Marathon OSAR-D (Original SAR with Date) Automatic 46mm or the Aera Instruments M-1?

The Aera Instruments M-1 carries a 42-hour power reserve against 40 hours on the Marathon OSAR-D (Original SAR with Date) Automatic 46mm.

What movement does the Marathon OSAR-D (Original SAR with Date) Automatic 46mm run compared to the Aera Instruments M-1?

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm runs a automatic caliber (Sellita SW220-1), while the Aera Instruments M-1 runs a manual (Sellita SW216-1).

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsAera Instruments M-1

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

Marathon OSAR-D (Original SAR with Date) Automatic 46mm

46mm-original-sar-w-date-on-3-piece-rubber-strap-kit-osar-d

MSRP $2,500

Aera Instruments M-1

At a glance

13 of 29 specs differ

Diameter

OSAR-D (Original SAR with Date) Automatic 46mm46mm

M-139mm

Power Reserve

OSAR-D (Original SAR with Date) Automatic 46mm40h

M-142h

Water Resistance

OSAR-D (Original SAR with Date) Automatic 46mm300m

M-1100m

MSRP

OSAR-D (Original SAR with Date) Automatic 46mm$2,500

M-1—

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Black

Dune

Lume

None

Super-LumiNova

Movement

3 specs

Caliber

Sellita SW220-1

Sellita SW216-1

Type

Automatic

Manual

Power Reserve

40h

42h

Pricing

1 specs

MSRP

$2,500

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