Side by side

Sternglas Naos Edition SportvsSinn U50 HYDRO SDR with TEGIMENT option

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

Naos Edition Sport
SternglasNaos Edition Sport
MSRP $269
U50 HYDRO SDR with TEGIMENT option
SinnU50 HYDRO SDR with TEGIMENT option
MSRP $3,110

At a glance

17 of 29 specs differ
Diameter
Naos Edition Sport38mm
U50 HYDRO SDR with TEGIMENT option41mm
Power Reserve
Naos Edition Sport
U50 HYDRO SDR with TEGIMENT option40h
Water Resistance
Naos Edition Sport50m
U50 HYDRO SDR with TEGIMENT option5,000m
MSRP
Naos Edition Sport$269
U50 HYDRO SDR with TEGIMENT option$3,110

Full specifications

Case

7 specs
Category
Sport
Diver
Diameter
38mm
41mm
Thickness
8mm
11.8mm
Lug-to-Lug
41mm
Finish
Brushed and polished
bead-blasted
Water Resistance
50m
5000m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
Black
Indices
Applied
Lume
None
Luminescent

Movement

4 specs
Caliber
Ronda 715
Ronda 715 Li - SWISS MADE
Power Reserve
40h
Jewels
5
Complications
None
Date

Pricing

1 specs
MSRP
$269
$3,110

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What people say

Owners + reviewers, side by side

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

Sternglas Naos Edition Sport

Owners widely praise the Sternglas Naos Edition Sport for its durability and refined daily wearability, easily transitioning between casual and dressier occasions. The sapphire crystal remains scratchless, and the steel case holds up well, though some users report minor bezel micro-scratching. One owner found the original tan strap showed significant wear and fraying within a year, necessitating a replacement. Opinions are split on the watch's aesthetic; some describe it as underwhelming with a printed-on face, small font, and toy-like hands, feeling cheap and looking worse in person, while others love the watch and find it looks fantastic. Some owners in the line also note that certain variants wear smaller than expected, with a desire for smaller case sizes for slender wrists. On balance, owners rate the Sternglas Naos Edition Sport highly for its durable construction and versatile design, despite some reservations about its dial finishing and strap quality.

Sinn U50 HYDRO SDR with TEGIMENT option

The Sinn U50 HYDRO SDR with TEGIMENT option is widely praised for its exceptional scratch resistance and legibility, with owners reporting no signs of wear after extended use. The oil-filled case contributes to extreme water resistance and a clear dial, while the fully tegimented construction offers a soft feel on the wrist. Reviewers note the compact 41mm size, though one owner found it did not wear as thin as expected due to its thickness. The lume is considered underwhelming by some, and the diving extension on the clasp can release too easily. It utilizes a quartz movement, which is noted as less accurate than previous thermo-compensated options. Overall, owners and reviewers rate the Sinn U50 HYDRO SDR with TEGIMENT option highly for its robust, legible, and virtually indestructible build at its price point.

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