Side by side

Sinn U18vsYema Superman Heritage

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

U18
SinnU18
MSRP $3,488
Superman Heritage
YemaSuperman Heritage
MSRP $1,004
What people say

Owners + reviewers, side by side

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

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.

Yema Superman Heritage

Owners widely praise the Yema Superman Heritage for its vintage aesthetic, comfortable bracelet with drilled lugs, and impressive packaging. Reviewers highlight its striking sunburst dial and unique bezel-lock mechanism. Some owners criticize bezel play, misaligned bezels, contrasting case and bracelet finishes, and long lugs. One reviewer notes that the high-polished case and dial color variation may affect legibility for some. On balance, owners and reviewers appreciate the Yema Superman Heritage for its authentic 1970s vibe and vintage charm.

At a glance

15 of 29 specs differ
Diameter
U1844mm
Superman Heritage39mm
Power Reserve
U1842h
Superman Heritage40h
Water Resistance
U182,000m
Superman Heritage300m
MSRP
U18$3,488
Superman Heritage$1,004

Full specifications

Case

7 specs
Diameter
44mm
39mm
Thickness
15.5mm
11.3mm
Lug Width
22mm
19mm
Material
high-strength
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
2000m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
39mm Automatic
Indices
Applied

Movement

2 specs
Caliber
Sellita SW300-1
Sellita SW200-1
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$3,488
$1,004
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