Side by side

Orient M-Force AC0NvsSinn U50 SDR with TEGIMENT option

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

What people say

Owners + reviewers, side by side

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

Orient M-Force AC0N

Owners widely praise the Orient M-Force AC0N for its rugged, tank-like appearance and robust, well-built construction, with many citing the reliability of Japanese automatic movements as a key draw. Reviewers and owners consistently flag excellent lume and a superior diver bezel, though one owner notes poor low-light legibility due to weak lume. Accuracy figures vary, with one owner reporting stable +12 seconds/day timekeeping while another found it kept near-perfect time when fully wound; a wobbly crown was also noted by one owner. Overall, owners rate the Orient M-Force AC0N highly for its toughness and value, with its striking design and durable build being the primary reasons for satisfaction.

Sinn U50 SDR with TEGIMENT option

The Sinn U50 SDR with TEGIMENT option is widely praised for its robust submarine steel construction, impressive 50bar water resistance, and excellent anti-reflective coating. Owners and reviewers highlight its toolish, legible dial, satisfyingly tactile bezel, and the outstanding scratch resistance provided by the TEGIMENT hardening. Some owners note the lume is underwhelming, and a few find the clasp aesthetically large and chunky despite its functional diver's extension. Overall, owners and reviewers rate the Sinn U50 SDR with TEGIMENT option highly for its exceptional build quality and scratch resistance at its price point.

At a glance

17 of 29 specs differ
Diameter
M-Force AC0N45mm
U50 SDR with TEGIMENT option41mm
Power Reserve
M-Force AC0N40h
U50 SDR with TEGIMENT option38h
Water Resistance
M-Force AC0N200m
U50 SDR with TEGIMENT option500m
MSRP
M-Force AC0N$555
U50 SDR with TEGIMENT option$3,326

Full specifications

Case

6 specs
Diameter
45mm
41mm
Thickness
12.8mm
11.2mm
Lug-to-Lug
52mm
Finish
bead-blasted
Water Resistance
200m
500m
Caseback

Crystal & Dial

4 specs
Crystal Shape
Dial Color
Green
Black
Indices
Lume
None
Luminescent

Movement

6 specs
Caliber
F6727
Sellita SW300-1
Beat Rate
21,600 vph
28,800 vph
Power Reserve
40h
38h
Jewels
22
25
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$555
$3,326
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