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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.
3 Variants
Retail MSRP
$3,488
Low
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Avg
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High
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Static data
Case
44mm
Power Reserve
42h
Movement
Automatic
Water Resistance
2000m
01
Case Dimensions
Diameter44mm
Thickness15.5mm
Lug-to-Lug—
Lug Width22mm
02
Case Build
Materialhigh-strength
Water Resistance2000m
03
Crystal & Dial
CrystalSapphire
Dial ColorBlack
04
Movement
Caliber
TypeAutomatic
Beat Rate28,800 vph (4.0Hz)
Power Reserve42 hours
Jewels25
HackingNo
Hand-WindingNo
ComplicationsTime only
In a nutshell
The Sinn U18 (ref. U18) is an automatic diver watch, with a 44mm high-strength case, 15.5mm thick, powered by the SW300-1 movement and a 42-hour power reserve. Water resistance is rated to 2000m, under a sapphire crystal. Manufacturer MSRP is $3,488.