Side by side

Phoibos Reef MastervsYema Navygraf CMM.10

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

Reef Master
PhoibosReef Master
MSRP $335
Navygraf CMM.10
YemaNavygraf CMM.10
MSRP $1,899

At a glance

12 of 29 specs differ
Diameter
Reef Master42mm
Navygraf CMM.1039mm
Power Reserve
Reef Master40h
Navygraf CMM.1040h
Water Resistance
Reef Master200m
Navygraf CMM.10100m
MSRP
Reef Master$335
Navygraf CMM.10$1,899

Full specifications

Case

6 specs
Diameter
42mm
39mm
Thickness
13mm
11mm
Lug-to-Lug
48mm
46mm
Lug Width
22mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Green
Standard
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
SII NH38
Yema CMM.10

Pricing

1 specs
MSRP
$335
$1,899

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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.

Yema Navygraf CMM.10

Owners widely report quality control concerns and suspect craftsmanship with the Yema Navygraf, with one user noting crooked text. A reviewer praised the Slim CMM.20 Limited Edition for its stylish, slim profile and classy finishing on a black lacquered enamel dial, though the audible micro-rotor spinning at its price point was a surprise. On balance, the consensus is that while the Yema Navygraf offers a stylish design, potential buyers should be aware of reported quality control issues.

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