Side by side

Biatec T. G. MasarykvsGruppo Gamma Field III GMT

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

Add a watch
T. G. Masaryk
BiatecT. G. Masaryk
MSRP $2,214
Field III GMT
Gruppo GammaField III GMT
MSRP $459
Buy from Biatec ↗
Buy used on eBay ↗
Buy from Gruppo Gamma ↗
Buy used on eBay ↗

At a glance

13 of 29 specs differ
Diameter
T. G. Masaryk40mm
Field III GMT40mm
Power Reserve
T. G. Masaryk41h
Field III GMT41h
Water Resistance
T. G. Masaryk100m
Field III GMT200m
MSRP
T. G. Masaryk$2,214
Field III GMT$459

Full specifications

Case

6 specs
Category
—
GMT
Thickness
11.15mm
14mm
Lug-to-Lug
48mm
48.5mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Beige
Black
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW200-1
Seiko Instruments NH38A
Power Reserve
41h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
—
$459
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.

Feynman Timekeepers Coalesce
Feynman Timekeepersmicro

Coalesce

6 variantsRef. the-panda
39mm·Automatic
$5,448MSRP
—Used
Christopher Ward C63 Sealander Extreme GMT
Christopher Wardmicro
Sealander

C63 Sealander Extreme GMT

6 watches · 19 variantsSealander
40mm·Automatic·150m WR
$2,075MSRP
—Used
Maen Manhattan 37 IFL Edition
Maenmicro

Manhattan 37 IFL Edition

8 watches · 30 variantsManhattan
37mm·Automatic·100m WR
$1,199MSRP
—Used
Christopher Ward C65 Aquitaine GMT
Christopher Wardmicro

C65 Aquitaine GMT

8 watches · 16 variantsC65
40mm·Automatic·200m WR
$1,710MSRP
—Used
Beaufort Permian Rift
Beaufortmicro

Permian Rift

4 variantsRef. permian-rift-azurite
38mm·Automatic
—MSRP
—Used
Serica Ref. 8315 Travel Chronometer
Sericamicro
Travel Chronometer

Ref. 8315 Travel Chronometer

2 variantsRef. 8315 Travel Chronometer
39mm·Automatic·200m WR
$2,479MSRP
—Used
Lucky Harvey Chiming Horse
Lucky Harveymicro

Chiming Horse

3 variantsRef. chiming-automaton-horse-watch-in-grade-5-titanium-alloy-blue-2026-collector-s-edition
39mm·Automatic
$2,399MSRP
—Used
Praesidus 42mm Automatic
Praesidusmicro
A-11 Tom RiceA-11

42mm Automatic

9 watches · 31 variantsA-11
38mm·Automatic·100m WR
$680MSRP
—Used
All alternatives to the T. G. Masaryk →All alternatives to the Field III GMT →
Explore the full catalog

Follow this matchup

Get a note when Biatec T. G. Masaryk vs Gruppo Gamma Field III GMT 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.

Feynman Timekeepers CoalescevsGruppo Gamma Field III GMTMaen Manhattan 37 IFL EditionvsGruppo Gamma Field III GMTBeaufort Permian RiftvsGruppo Gamma Field III GMTLucky Harvey Chiming HorsevsGruppo Gamma Field III GMTBiatec T. G. MasarykvsGruppo Gamma Field III GMT DateBiatec T. G. MasarykvsChristopher Ward C63 Sealander Extreme GMT
Edit this comparisonAdd another watchExplore more 39–41mm watches