Side by side

Biatec T. G. MasarykvsChristopher Ward C63 Sealander Rocks

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
C63 Sealander Rocks
Christopher WardC63 Sealander Rocks
MSRP $1,350
Buy from Biatec ↗
Buy used on eBay ↗
Buy from Christopher Ward ↗
Buy used on eBay ↗

At a glance

12 of 29 specs differ
Diameter
T. G. Masaryk40mm
C63 Sealander Rocks40mm
Power Reserve
T. G. Masaryk41h
C63 Sealander Rocks38h
Water Resistance
T. G. Masaryk100m
C63 Sealander Rocks150m
MSRP
T. G. Masaryk$2,214
C63 Sealander Rocks$1,350

Full specifications

Case

5 specs
Category
—
Sport
Thickness
11.15mm
11.05mm
Lug-to-Lug
48mm
42.87mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
100m
150m

Crystal & Dial

2 specs
Dial Color
Beige
Yellow
Lume
None
SLN X1 BL C1

Movement

4 specs
Caliber
Sellita SW200-1
SW200-1
Beat Rate
28,800 vph
4 vph
Power Reserve
41h
38h
Jewels
25
26

Pricing

1 specs
MSRP
—
$1,350
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
Boldr Charizard
Boldrmicro
Pokémon Collab

Charizard

Ref. charizard
40mm·Automatic·200m WR
$449MSRP
—Used
Maen Manhattan 37 IFL Edition
Maenmicro

Manhattan 37 IFL Edition

8 watches · 30 variantsManhattan
37mm·Automatic·100m WR
$1,199MSRP
—Used
Beaufort Permian Rift
Beaufortmicro

Permian Rift

4 variantsRef. permian-rift-azurite
38mm·Automatic
—MSRP
—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
Christopher Ward C65 Sandhurst Series 2
Christopher Wardmicro

C65 Sandhurst Series 2

8 watches · 16 variantsC65
40mm·Automatic·150m WR
$1,375MSRP
—Used
Praesidus 42mm Automatic
Praesidusmicro
A-11 Tom RiceA-11

42mm Automatic

9 watches · 31 variantsA-11
38mm·Automatic·100m WR
$680MSRP
—Used
Baltic Aquascaphe Dual-Crown
Balticmicro

Aquascaphe Dual-Crown

2 variantsAquascaphe Dual-Crown
39mm·Automatic·200m WR
$724MSRP
—Used
All alternatives to the T. G. Masaryk →All alternatives to the C63 Sealander Rocks →
Explore the full catalog

Follow this matchup

Get a note when Biatec T. G. Masaryk vs Christopher Ward C63 Sealander Rocks 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.

Christopher Ward C63 Sealander RocksvsFeynman Timekeepers CoalesceChristopher Ward C63 Sealander RocksvsMaen Manhattan 37 IFL EditionBeaufort Permian RiftvsChristopher Ward C63 Sealander RocksChristopher Ward C63 Sealander RocksvsLucky Harvey Chiming HorseBiatec T. G. MasarykvsBoldr CharizardBiatec T. G. MasarykvsBoldr Pikachu
Edit this comparisonAdd another watchExplore more 39–41mm watches