Side by side

Spinnaker Bradner Pearl DivervsSinn U18

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

Bradner Pearl Diver
SpinnakerBradner Pearl Diver
MSRP $370
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.

Spinnaker Bradner Pearl Diver

The Spinnaker Bradner Pearl Diver is noted by owners as large on smaller wrists, with a 50mm lug-to-lug and 15mm height being a concern, though some find it acceptable with specific strap choices. Opinions on finishing quality vary, with one owner reporting issues like a poorly seated bezel and crooked indices. Overall, owners rate the Spinnaker Bradner Pearl Diver with mixed reviews regarding its size and finishing.

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

14 of 29 specs differ
Diameter
Bradner Pearl Diver42mm
U1844mm
Power Reserve
Bradner Pearl Diver40h
U1842h
Water Resistance
Bradner Pearl Diver180m
U182,000m
MSRP
Bradner Pearl Diver$370
U18$3,488

Full specifications

Case

7 specs
Diameter
42mm
44mm
Thickness
15mm
15.5mm
Lug-to-Lug
50mm
Material
316L Stainless Steel
high-strength
Finish
Brushed and polished
Water Resistance
180m
2000m
Caseback
Solid

Crystal & Dial

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

Movement

2 specs
Caliber
SII NH35A
SW300-1
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$370
$3,488
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