Side by side

Tudor Black BayvsSinn U1 S L

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

U1 S L
SinnU1 S L
MSRP $3,532
What people say

Owners + reviewers, side by side

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

Tudor Black Bay

Owners widely praise the Tudor Black Bay for its comfortable wearability, robust build, and vintage-inspired aesthetics, with specific mentions of its satisfying winding feel and sturdy bezel action. Reviewers highlight the 39mm Black Bay 58's comfortable size and thinness, while others note the 41mm Master Chronometer's reliable timekeeping and magnetic resistance. Some owners find the GMT hand difficult to distinguish in low light. A recurring point of contention across multiple sources is the lack of on-the-fly micro-adjustment on the bracelet, though some find aftermarket solutions adequate. One owner reported the watch losing two minutes a day after six years, requiring a service. Overall, owners and reviewers rate the Tudor Black Bay highly for its blend of vintage charm, modern robustness, and comfortable wearability.

From video reviewers

The COSC-certified accuracy of the movement is a notable strength. The 14.7mm to 14.8mm thickness is cited as a potential drawback. Reviewers are divided on whether the newer models represent a departure from the Black Bay's heritage design.

Sinn U1 S L

The Sinn U1 S L is widely praised for its intense, full-lume dial, a feature described as new technology that glows brightly, and its unique black and white "arctic tactical" aesthetic. Owners and reviewers consistently highlight the Tegimented German submarine steel case for its exceptional scratch resistance and matte, non-reflective finish, with one owner reporting no scratches on the case after 17 years. The watch is also noted for its legibility and robust build, offering 1000m water resistance. However, some owners find the 44mm size and 14.7mm thickness wear large, and one reviewer noted the 4 o'clock crown positions lacked distinct clicks, leading to difficult date changes. Accuracy figures for the ETA 2824-2 movement vary, with one owner seeing +1/+2 s/day and another about -6 s/day. The Tegimented bracelet is reported to scratch more easily than the case by some, while others found it held up well.

At a glance

14 of 29 specs differ
Diameter
Black Bay41mm
U1 S L44mm
Power Reserve
Black Bay70h
U1 S L38h
Water Resistance
Black Bay200m
U1 S L1,000m
MSRP
Black Bay
U1 S L$3,532

Full specifications

Case

5 specs
Diameter
41mm
44mm
Lug-to-Lug
0mm
Finish
Polished + Satin
black
Water Resistance
200m
1000m
Caseback
Engraved

Crystal & Dial

4 specs
Crystal Shape
AR Coating
Underside
Indices
Lume
None
Luminescent

Movement

4 specs
Caliber
MT5602
SW 200-1
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
38h
Jewels
0
26

Pricing

1 specs
MSRP
$3,532
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