Side by side

Orient M-Force AC0NvsUndone Basecamp Stealth Leather

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.

Undone Basecamp Stealth Leather

The Undone Basecamp Stealth Leather is a 40mm tool watch featuring a bidirectional bezel and a Seiko NH34 automatic movement. Owners report it keeps great time, with one noting approximately 20 seconds deviation over a week. Some users experience ghost date-setting in the first position, which is a minor annoyance for some. Overall, owners rate the Undone Basecamp Stealth Leather highly for its reliable Seiko movement and excellent timekeeping.

At a glance

17 of 29 specs differ
Diameter
M-Force AC0N45mm
Basecamp Stealth Leather40mm
Power Reserve
M-Force AC0N40h
Basecamp Stealth Leather
Water Resistance
M-Force AC0N200m
Basecamp Stealth Leather100m
MSRP
M-Force AC0N$555
Basecamp Stealth Leather$360

Full specifications

Case

6 specs
Category
Diver
Diameter
45mm
40mm
Thickness
12.8mm
0mm
Lug-to-Lug
52mm
0mm
Lug Width
20mm
0mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
AR Coating
Underside
Dial Color
Green

Movement

7 specs
Caliber
F6727
Seiko NH34
Beat Rate
21,600 vph
0 vph
Power Reserve
40h
Jewels
22
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Date
None

Pricing

1 specs
MSRP
$555
$360
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