Side by side

Boldr Expedition EnigmathvsTudor Black Bay 54

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

Expedition Enigmath
BoldrExpedition Enigmath
MSRP $599
Black Bay 54
TudorBlack Bay 54
MSRP $4,725

At a glance

16 of 29 specs differ
Diameter
Expedition Enigmath41mm
Black Bay 5437mm
Power Reserve
Expedition Enigmath42h
Black Bay 5470h
Water Resistance
Expedition Enigmath200m
Black Bay 54200m
MSRP
Expedition Enigmath$599
Black Bay 54$4,725

Full specifications

Case

6 specs
Category
Tool
Diver
Diameter
41mm
37mm
Thickness
12.8mm
11.2mm
Lug-to-Lug
47.5mm
46mm
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Enigmath Coconino
Blue

Movement

6 specs
Caliber
Miyota 9039,
MT5400
Beat Rate
28,800 vph
0 vph
Power Reserve
42h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$599
$4,725

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Boldr Expedition Enigmath

The watch's slide rule function is a convenient feature, allowing for calculations on the go. One potential drawback is the use of the Japanese Miyota 9039 movement, which may be a trade-off for some buyers. Reviewers disagree on whether the quick 'on the fly' adjust bracelet is a more significant advantage than the watch's sapphire crystal for durability and scratch resistance.

Tudor Black Bay 54

The Tudor Black Bay 54 is widely praised for its compact 37mm size and thin 11.2mm case, offering surprising wrist presence and comfortable wearability with a vintage aesthetic. Reviewers highlight its robust 200-meter water resistance, clean design, and modern features without compromise, powered by Tudor's MT5400 movement with a 70-hour power reserve. One reviewer noted a preference for true vintage or more modern Tudor offerings over time. On balance, reviewers rate the Tudor Black Bay 54 highly for its faithful vintage design and comfortable, modern dive watch experience.

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