Choosing

Model comparison

Choose two or three models: movements, dimensions, functions and prices from our reviews.

On a small screen, scroll the table sideways.

Prices come from the reviews in their original currency and market. Article dates are shown below.
SpecificationSinnU50 DS
ReferenceU50 DS
WindingAutomatic winding
CalibreSellita SW300-1
Diameter41 mm
Fit dimensionsDimensions: 41 × 11.2 mm; 20 mm lug spacing
Power reserveNot stated in Sinn specification
Case materialGerman Submarine Steel; TEGIMENT
FunctionsNot stated in the review
CrystalNot stated in the review
Water resistance50 bar / 500 m; DNV testing
Price and marketNot stated in the review
How to read dimensions and compare fit

Specifications help narrow your choices, but cannot replace trying a watch on. A dimension missing from a review is unknown, not zero.

Reference
The code identifying a specific watch variant. Dial, case material and other details can differ within one model family, so check the exact reference.
Diameter
The measurement across the case. Diameter alone does not describe fit: case length, lug shape, thickness and strap or bracelet construction also matter.
Thickness
The height of a watch affects how it fits under a cuff. Check whether the stated measurement includes a raised crystal, as measurement methods can differ.
Lug-to-lug versus lug width
Lug-to-lug is the length from the tips of the lugs on one side to those on the opposite side. Lug width is the gap where the strap attaches. These are different dimensions; projecting bracelet end links can add to the span on your wrist.
Water resistance
Metres, bar and ATM describe test pressure, not a permitted diving depth. Follow the specific model’s instructions for swimming and diving; seal condition and strap material also matter.

A practical starting point: compare diameter, thickness and lug-to-lug with a watch you already find comfortable. Even identical dimensions do not guarantee identical fit.