Side by side

Sugess MoonPhase Master S394vsSinn U18

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

MoonPhase Master S394
SugessMoonPhase Master S394
MSRP $449
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.

Sugess MoonPhase Master S394

Owners widely praise the Sugess MoonPhase Master S394 for its impressive value, offering multiple complications at a sub-$200 price point, with one owner highlighting its deep blue dial and applied markers. While one owner finds the 14mm thickness acceptable and wearable, another notes the included straps are subpar and the movement finishing is rough under magnification. The long lugs can also create a noticeable gap with the strap. On balance, owners rate the Sugess MoonPhase Master S394 highly for the significant complications and aesthetic appeal it delivers at its accessible price.

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

18 of 29 specs differ
Diameter
MoonPhase Master S39440mm
U1844mm
Power Reserve
MoonPhase Master S39445h
U1842h
Water Resistance
MoonPhase Master S39450m
U182,000m
MSRP
MoonPhase Master S394$449
U18$3,488

Full specifications

Case

9 specs
Category
Chronograph
Diver
Diameter
40mm
44mm
Thickness
13mm
15.5mm
Lug-to-Lug
46mm
Lug Width
20mm
22mm
Material
Stainless Steel/Rose Gold
high-strength
Finish
Brushed and polished
Water Resistance
50m
2000m
Caseback
Display

Crystal & Dial

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

Movement

4 specs
Caliber
Seagull ST21
SW300-1
Beat Rate
3 vph
28,800 vph
Power Reserve
45h
42h
Complications
GMT, Chronograph, Moonphase, Date
None

Pricing

1 specs
MSRP
$449
$3,488
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