Which is bigger, the Biatec T. G. Masaryk or the Loresum LS01?

The Loresum LS01 wears larger at 42mm versus 40mm for the Biatec T. G. Masaryk — a 2mm difference across the dial.

Which has better water resistance, the Biatec T. G. Masaryk or the Loresum LS01?

The Biatec T. G. Masaryk is rated to 100m versus 50m for the Loresum LS01.

Which has a longer power reserve, the Biatec T. G. Masaryk or the Loresum LS01?

The Biatec T. G. Masaryk carries a 41-hour power reserve against 40 hours on the Loresum LS01.

What movement does the Biatec T. G. Masaryk run compared to the Loresum LS01?

Both watches run automatic movements — the Biatec T. G. Masaryk uses the Sellita SW200-1 and the Loresum LS01 uses the Miyota 9015.

Side by side

Biatec T. G. MasarykvsLoresum LS01

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

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Biatec T. G. Masaryk

MSRP $2,214

Loresum LS01

ls03-rose-gold-plated

At a glance

11 of 29 specs differ

Diameter

T. G. Masaryk40mm

LS0142mm

Power Reserve

T. G. Masaryk41h

LS0140h

Water Resistance

T. G. Masaryk100m

LS0150m

MSRP

T. G. Masaryk$2,214

LS01—

Full specifications

Case

6 specs

Diameter

40mm

42mm

Thickness

11.15mm

12.5mm

Lug-to-Lug

48mm

51mm

Lug Width

20mm

22mm

Material

316L Stainless Steel

Stainless Steel

Water Resistance

100m

50m

Crystal & Dial

2 specs

Dial Color

Beige

—

Lume

None

Swiss Super-LumiNova® BGW9

Movement

2 specs

Caliber

Sellita SW200-1

Miyota 9015

Power Reserve

41h

40h

Pricing

1 specs

MSRP

—

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Biatec T. G. MasarykvsLoresum LS01

At a glance

Full specifications

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