Which is bigger, the Fortis Flieger F-43 Bicompax or the Loresum LS01?

The Fortis Flieger F-43 Bicompax wears larger at 43mm versus 42mm for the Loresum LS01 — a 1mm difference across the dial.

Which has better water resistance, the Fortis Flieger F-43 Bicompax or the Loresum LS01?

The Fortis Flieger F-43 Bicompax is rated to 200m versus 50m for the Loresum LS01.

Which has a longer power reserve, the Fortis Flieger F-43 Bicompax or the Loresum LS01?

The Fortis Flieger F-43 Bicompax carries a 58-hour power reserve against 40 hours on the Loresum LS01.

What movement does the Fortis Flieger F-43 Bicompax run compared to the Loresum LS01?

Both watches run automatic movements — the Fortis Flieger F-43 Bicompax uses the Sellita SW510 BH a and the Loresum LS01 uses the Miyota 9015.

Side by side

Fortis Flieger F-43 BicompaxvsLoresum LS01

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

Add a watch

Fortis Flieger F-43 Bicompax

F-43 Bicompax

MSRP $4,180

Loresum LS01

ls03-rose-gold-plated

At a glance

11 of 29 specs differ

Diameter

Flieger F-43 Bicompax43mm

LS0142mm

Power Reserve

Flieger F-43 Bicompax58h

LS0140h

Water Resistance

Flieger F-43 Bicompax200m

LS0150m

MSRP

Flieger F-43 Bicompax$4,180

LS01—

Full specifications

Case

5 specs

Crystal & Dial

2 specs

Dial Color

Original

—

Lume

None

Swiss Super-LumiNova® BGW9

Movement

3 specs

Caliber

Sellita SW510 BH a

Miyota 9015

Power Reserve

58h

40h

Jewels

Pricing

1 specs

MSRP

$4,180

—

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.

Bremontmicro

Follow this matchup

Get a note when Fortis Flieger F-43 Bicompax vs Loresum LS01 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.

Bremont ALT1-CvsLoresum LS01 CWC 6BB-WRvsLoresum LS01 CWC Valjoux 7733 Pilot Chronograph Limited Edition WatchvsLoresum LS01 Loresum LS01vsSheffield SCR CHRONO SW Fortis Flieger F-43 BicompaxvsManufaktur Waldhoff Olympus Fortis Flieger F-43 BicompaxvsRadcliffe Watches L'INSTANT SONORE

Edit this comparison Add another watch Explore more 41–44mm watches

Fortis Flieger F-43 BicompaxvsLoresum LS01

At a glance

Full specifications

More watches worth a look

ALT1-C

Olympus

6BB-WR

L'INSTANT SONORE

Ultramatic II

SCR CHRONO SW

RAE-3

Flygraf Navigator

Follow this matchup

People also compared