Side by side

Lum-Tec Solar MarinevsTudor Black Bay 54

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

Solar Marine
Lum-TecSolar Marine
MSRP $463
Black Bay 54
TudorBlack Bay 54
MSRP $4,725

At a glance

18 of 29 specs differ
Diameter
Solar Marine39mm
Black Bay 5437mm
Power Reserve
Solar Marine40h
Black Bay 5470h
Water Resistance
Solar Marine300m
Black Bay 54200m
MSRP
Solar Marine$463
Black Bay 54$4,725

Full specifications

Case

7 specs
Diameter
39mm
37mm
Thickness
10.7mm
11.2mm
Lug-to-Lug
43.5mm
46mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Steel
Blue
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
MT5400
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$463
$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.

Lum-Tec Solar Marine

Lum-Tec Solar Marine owners praise its all-black diver design, excellent lume, and rugged, tank-like build. One owner finds it a perfect fit for a 7-inch wrist and the most frequently worn watch despite its smaller size. However, one owner cautions that the PVD coating will wear and chip within a year, impacting its appearance, and another finds the price high for a solar quartz watch with added lume. On balance, owners rate the Lum-Tec Solar Marine highly for its robust design and excellent lume, despite concerns about PVD durability and value proposition.

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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