Side by side

Marnaut Safe Harbour 100CvsOrient M-Force AC0N

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

Safe Harbour 100C
MarnautSafe Harbour 100C
MSRP $899
M-Force AC0N
OrientM-Force AC0N
MSRP $555
What people say

Owners + reviewers, side by side

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

Marnaut Safe Harbour 100C

The Marnaut Safe Harbour is widely praised for its compact 39mm tonneau case and its unique sea urchin-inspired dial. Reviewers note the case wears well despite its 13.2mm thickness. One owner flagged a potential lume inconsistency, which was attributed to UV lighting effects. The slender handset can be difficult to read against the busy dial, and the faux-crocodile strap is stiff initially. Overall, owners and reviewers appreciate the Marnaut Safe Harbour for its distinctive dial and comfortable wearability.

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.

At a glance

15 of 29 specs differ
Diameter
Safe Harbour 100C39mm
M-Force AC0N45mm
Power Reserve
Safe Harbour 100C41h
M-Force AC0N40h
Water Resistance
Safe Harbour 100C100m
M-Force AC0N200m
MSRP
Safe Harbour 100C$899
M-Force AC0N$555

Full specifications

Case

5 specs
Category
Diver
Diameter
39mm
45mm
Thickness
13mm
12.8mm
Lug-to-Lug
45mm
52mm
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
Black
Green
Indices
Applied

Movement

5 specs
Caliber
Sellita SW200-1
F6727
Beat Rate
28,800 vph
21,600 vph
Power Reserve
41h
40h
Jewels
25
22
Complications
None
Date

Pricing

1 specs
MSRP
$899
$555
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