Side by side

Tudor Pelagos UltravsSinn U18

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

Pelagos Ultra
TudorPelagos Ultra
MSRP $6,900
U18
SinnU18
MSRP $3,488
What people say

Owners + reviewers, side by side

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

Tudor Pelagos Ultra

The Tudor Pelagos Ultra is praised for its 1000 meters of water resistance, METAS-certified Calibre MT5612-U movement, and fully lumed dial and bezel. Reviewers highlight its titanium case and self-adjusting clasp as key features. The Tudor Pelagos Ultra is slightly larger at 43mm than some other models in the line but wears comfortably. Overall, owners and reviewers rate the Tudor Pelagos Ultra highly for its technical specifications and comfortable wearability as a flagship dive watch.

From video reviewers

The Tudor Pelagos Ultra's all-titanium construction provides a lightweight and durable case. One weakness is the lack of lume brightness. Reviewers disagree on whether the helium release valve is a notable feature or a drawback for a more streamlined design.

Sinn U18

The Sinn U18 is praised for its unique deep blue/green dial with three-dimensional oxygen bubbles that change with light, and its comfortable, easily adjustable bracelet. Owners find the watch stunning and a piece of history, appreciating the refined hands. The Sinn U18 features a 44mm, 15.5mm thick case made from German submarine steel, offering a 2000-meter dive specification and Sinn's Ar-Dehumidifying technology, powered by a Sellita SW300-1 movement. The case thickness is apparent, and the watch comes as a complete set with box and papers for $3,000-$3,680. On balance, owners and reviewers rate the Sinn U18 highly for its striking dial and robust build.

At a glance

17 of 29 specs differ
Diameter
Pelagos Ultra40mm
U1844mm
Power Reserve
Pelagos Ultra65h
U1842h
Water Resistance
Pelagos Ultra1,000m
U182,000m
MSRP
Pelagos Ultra$6,900
U18$3,488

Full specifications

Case

7 specs
Diameter
40mm
44mm
Thickness
14.5mm
15.5mm
Lug-to-Lug
46mm
Material
Titanium
high-strength
Finish
Satin
Water Resistance
1000m
2000m
Caseback
Solid screw-down

Crystal & Dial

3 specs
Crystal Shape
AR Coating
Indices

Movement

6 specs
Caliber
MT5612-U
Sellita SW300-1
Beat Rate
0 vph
28,800 vph
Power Reserve
65h
42h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$6,900
$3,488
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