Side by side

Lum-Tec Solar MarinevsTudor Black Bay Chrono

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 Chrono
TudorBlack Bay Chrono
MSRP $7,000

At a glance

21 of 29 specs differ
Diameter
Solar Marine39mm
Black Bay Chrono41mm
Power Reserve
Solar Marine40h
Black Bay Chrono70h
Water Resistance
Solar Marine300m
Black Bay Chrono200m
MSRP
Solar Marine$463
Black Bay Chrono$7,000

Full specifications

Case

9 specs
Category
Diver
Chronograph
Diameter
39mm
41mm
Thickness
10.7mm
14.4mm
Lug-to-Lug
43.5mm
46mm
Lug Width
20mm
22mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Finish
Brushed and polished
Brushed + Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Steel
Black
Indices
Applied

Movement

7 specs
Caliber
MT5813
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Chronograph, Date

Pricing

1 specs
MSRP
$463
$7,000

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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 Chrono

Owners widely praise the Tudor Black Bay Chrono as a fantastic offering. Reviewers note the 41mm case's 200-meter water resistance and its channeling of vintage chronograph design, with the reverse panda dial offering excellent legibility. However, one reviewer points out that the white lume on the panda dial can blend with the hands and markers, and the snowflake hand can obscure the 45-minute chronograph totalizer. Overall, owners rate the Tudor Black Bay Chrono highly for its strong design and legibility, despite minor legibility concerns on certain dial configurations.

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