Side by side

Spinnaker Hass AutomaticvsSinn U18

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

Hass Automatic
SpinnakerHass Automatic
MSRP $445
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 Hass Automatic

The Spinnaker Hass Automatic is a 43mm watch featuring an NH35 movement and sapphire crystal, with owners highlighting its beautiful dial. Some find Spinnaker watches, including this model, to be on the thicker side, with one owner describing the Hass X MCS Blue Fade variant as comically large and chunky. The Spinnaker Hass Automatic was offered at $445 USD as part of a special collection with customized elements, and a limited edition of 200 pieces was also available for $195 shipped. On balance, owners and reviewers note the attractive dial as a key positive, though some express reservations about the watch's thickness.

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
Hass Automatic43mm
U1844mm
Power Reserve
Hass Automatic40h
U1842h
Water Resistance
Hass Automatic300m
U182,000m
MSRP
Hass Automatic$445
U18$3,488

Full specifications

Case

7 specs
Diameter
43mm
44mm
Thickness
16.5mm
15.5mm
Lug-to-Lug
50mm
Material
316L Stainless Steel
high-strength
Finish
Brushed and polished
Water Resistance
300m
2000m
Caseback
Solid

Crystal & Dial

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

Movement

2 specs
Caliber
Seiko NH35
Sellita SW300-1
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$445
$3,488
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