Side by side

Phoibos Reef MastervsOrient M-Force AC0N

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

Reef Master
PhoibosReef Master
MSRP $335
M-Force AC0N
OrientM-Force AC0N
MSRP $555

At a glance

13 of 29 specs differ
Diameter
Reef Master42mm
M-Force AC0N45mm
Power Reserve
Reef Master40h
M-Force AC0N40h
Water Resistance
Reef Master200m
M-Force AC0N200m
MSRP
Reef Master$335
M-Force AC0N$555

Full specifications

Case

4 specs
Diameter
42mm
45mm
Thickness
13mm
12.8mm
Lug-to-Lug
48mm
52mm
Lug Width
22mm
20mm

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Underside
Indices
Applied
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
SII NH38
F6727
Beat Rate
28,800 vph
21,600 vph
Jewels
25
22
Complications
None
Date

Pricing

1 specs
MSRP
$335
$555

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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.

Phoibos Reef Master

Owners widely praise the Phoibos Reef Master for its exceptional value, highlighting its sapphire crystal, DLC coating, and extensive BGW9 lume. The watch is noted for its cool lume, with one owner finding it not bulky despite its robust build. The Shamrock Green dial and texture are highly praised, as is the comfortable bracelet with solid end links. However, the bezel action is described as rough, and the basic folding clasp is a disappointment. Accuracy is reported as excellent, with one owner seeing +-2 sec/day. Some find the 42mm size almost too big for their wrists, and the date window is considered too small. Overall, owners rate the Phoibos Reef Master highly for its impressive feature set and value at its price point.

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.

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