Side by side

Citizen Promaster Professional DivervsPhoibos Reef Master

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

Promaster Professional Diver
CitizenPromaster Professional Diver
MSRP $431
Reef Master
PhoibosReef Master
MSRP $335

At a glance

11 of 29 specs differ
Diameter
Promaster Professional Diver44mm
Reef Master42mm
Power Reserve
Promaster Professional Diver40h
Reef Master40h
Water Resistance
Promaster Professional Diver200m
Reef Master200m
MSRP
Promaster Professional Diver$431
Reef Master$335

Full specifications

Case

4 specs
Diameter
44mm
42mm
Thickness
12mm
13mm
Lug-to-Lug
46mm
48mm
Material
Super Titanium
Stainless Steel

Crystal & Dial

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

Movement

2 specs
Caliber
E168
SII NH38
Type
Solar
Automatic

Pricing

1 specs
MSRP
$431
$335

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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.

Citizen Promaster Professional Diver

The Citizen Promaster Professional Diver is a serious instrument with a robust technical appearance, featuring strong lines and an aggressive bezel. It utilizes Citizen's Duratect MRK and DLC coatings for scratch resistance. The BN1024-01E model offers a 300m depth rating and a sapphire crystal, with a 365-day power reserve from its Eco-Drive quartz movement. However, its large size, measuring 52.5mm in diameter and nearly 22mm thick, makes it unsuitable for everyday wear. One reviewer notes the absence of an orange minute hand, which is considered effective on other Promaster models. On balance, the Citizen Promaster Professional Diver is a highly capable, albeit massive, dive tool, with its scratch resistance and long power reserve being key strengths.

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.

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