Side by side

Sinn U18vsWilliam Wood Bronze

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

U18
SinnU18
MSRP $3,488
Bronze
William WoodBronze
MSRP $920
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.

William Wood Bronze

Owners widely appreciate the William Wood Bronze's unique firefighting heritage and design, with one owner specifically praising its look and feel. The watch features a 41mm satin-brushed bronze case, a navy blue dial with rose-gold plated hands, and a strap made from upcycled fire-hose rubber. It is powered by a Seiko NH35 automatic movement with a 41-hour power reserve. However, some owners feel the watch is overpriced, particularly given its Seiko NH35 movement, and consider its theme to be overly gimmicky. On balance, owners and reviewers are split on the William Wood Bronze's value proposition, with its unique story and materials being a key point of contention against the price and movement choice.

At a glance

16 of 29 specs differ
Diameter
U1844mm
Bronze41mm
Power Reserve
U1842h
Bronze40h
Water Resistance
U182,000m
Bronze100m
MSRP
U18$3,488
Bronze$920

Full specifications

Case

8 specs
Diameter
44mm
41mm
Thickness
15.5mm
15mm
Lug-to-Lug
49mm
Lug Width
22mm
20mm
Material
high-strength
Bronze
Finish
Brushed and polished
Water Resistance
2000m
100m
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Emerald
Indices
Applied

Movement

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

Pricing

1 specs
MSRP
$3,488
$920
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