Side by side

Chronotechna NanoBlackvsTudor Black Bay

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

Add a watch
NanoBlack
ChronotechnaNanoBlack
Black Bay
TudorBlack Bay
Buy from Chronotechna ↗
Buy used on eBay ↗
Buy from Tudor ↗
Buy used on eBay ↗

At a glance

10 of 29 specs differ
Diameter
NanoBlack42mm
Black Bay41mm
Power Reserve
NanoBlack38h
Black Bay70h
Water Resistance
NanoBlack100m
Black Bay200m
MSRP
NanoBlack—
Black Bay—

Full specifications

Case

7 specs
Category
—
Diver
Diameter
42mm
41mm
Thickness
11.65mm
14.7mm
Lug-to-Lug
47.90mm
46mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
100m
200m
Caseback
Solid
Engraved

Crystal & Dial

1 specs
Dial Color
White
Black

Movement

2 specs
Caliber
Sellita SW200-1
MT5602
Power Reserve
38h
70h
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.

Biatec T. G. Masaryk
Biatecmicro

T. G. Masaryk

40mm·Automatic·100m WR
$2,214MSRP
—Used
Islander Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323
Islandermicro
Under $50

Islander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323

9 watches · 9 variantsUnder $50
42mm·Automatic·200m WR
$449MSRP
—Used
Biatec Majestic SE 01 WDL
Biatecmicro

Majestic SE 01 WDL

40mm·Automatic·100m WR
$1,717MSRP
—Used
Bremont Supermarine 300M
Bremontmicro

Supermarine 300M

8 watches · 39 variantsSupermarine
40mm·Automatic·300m WR
$3,550MSRP
—Used
DuFrane Watches Barton Springs III 42mm Mechanical Diving Watch
DuFrane Watchesmicro

Barton Springs III 42mm Mechanical Diving Watch

2 variantsRef. barton-springs-iii
42mm·Automatic·200m WR
—MSRP
—Used
Christopher Ward C60 Lympstone
Christopher Wardmicro

C60 Lympstone

6 watches · 9 variantsC60
40mm·Automatic·600m WR
$1,615MSRP
—Used
Limes Endurance II
Limesmicro

Endurance II

3 variantsRef.
41.5mm·Automatic·300m WR
—MSRP
—Used
Helgray Poseidon Diver (Automatic)
Helgraymicro

Poseidon Diver (Automatic)

Ref. poseidon-diver-automatic
40mm·Automatic·300m WR
$249MSRP
—Used
All alternatives to the NanoBlack →All alternatives to the Black Bay →
Explore the full catalog

Follow this matchup

Get a note when Chronotechna NanoBlack vs Tudor Black Bay 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.

Biatec T. G. MasarykvsTudor Black BayBiatec Majestic SE 01 WDLvsTudor Black BayDuFrane Watches Barton Springs III 42mm Mechanical Diving WatchvsTudor Black BayLimes Endurance IIvsTudor Black BayChronotechna NanoBlackvsIslander Red October V2 Dive Watch with Radiant Blue Dial #ISL-323Bremont Supermarine 300MvsChronotechna NanoBlack
Edit this comparisonAdd another watchExplore more 40–43mm watches