Side by side

Praesidus DD-45vsSinn U50 HYDRO SDR with TEGIMENT option

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

DD-45
PraesidusDD-45
MSRP $299
U50 HYDRO SDR with TEGIMENT option
SinnU50 HYDRO SDR with TEGIMENT option
MSRP $3,110

At a glance

18 of 29 specs differ
Diameter
DD-4540mm
U50 HYDRO SDR with TEGIMENT option41mm
Power Reserve
DD-4540h
U50 HYDRO SDR with TEGIMENT option40h
Water Resistance
DD-45100m
U50 HYDRO SDR with TEGIMENT option5,000m
MSRP
DD-45$299
U50 HYDRO SDR with TEGIMENT option$3,110

Full specifications

Case

8 specs
Category
Field
Diver
Diameter
40mm
41mm
Thickness
11.8mm
Lug-to-Lug
46.5mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
bead-blasted
Water Resistance
100m
5000m
Caseback
Solid

Crystal & Dial

6 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
OG
Black
Indices
Applied
Lume
None
Luminescent

Movement

3 specs
Caliber
Ameriquartz USA
Ronda 715 Li - SWISS MADE
Jewels
25
5
Complications
None
Date

Pricing

1 specs
MSRP
$299
$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.

Praesidus DD-45

The Praesidus DD-45 is lauded for its detailed vintage-inspired design and solid finishing, with reviewers highlighting the impressive aged indices and hands on the "Patina" version and a well-finished 38mm steel case. Its 100-meter water resistance exceeds that of the original military watches, and the included leather strap is praised for its quality and vintage character, despite initial stiffness. One reviewer notes the Landeron movement exhibits jerky hand-winding. Overall, reviewers rate the Praesidus DD-45 highly for its faithful vintage aesthetic and robust build at its $900 price point.

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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