Side by side

Phoibos Reef MastervsSeiko Ice Diver

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

Reef Master
PhoibosReef Master
MSRP $335
Ice Diver
SeikoIce Diver
MSRP $900

At a glance

11 of 29 specs differ
Diameter
Reef Master42mm
Ice Diver45mm
Power Reserve
Reef Master40h
Ice Diver70h
Water Resistance
Reef Master200m
Ice Diver200m
MSRP
Reef Master$335
Ice Diver$900

Full specifications

Case

4 specs
Diameter
42mm
45mm
Thickness
13mm
12.9mm
Lug-to-Lug
48mm
52.6mm
Lug Width
22mm
20mm

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Green
Black
Lume
Super-LumiNova
LumiBrite

Movement

3 specs
Caliber
SII NH38
6R35
Power Reserve
40h
70h
Jewels
25
24

Pricing

1 specs
MSRP
$335
$900

Follow this matchup

Get a note when Phoibos Reef Master vs Seiko Ice Diver gets more votes, a community discussion, or a price drop. No account needed.

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.

Seiko Ice Diver

Owners widely praise the Seiko Prospex Sea for its robust build, classic dive watch design, and excellent value, with many highlighting its strong lume and comfortable wearability. Reviewers consistently flag its superior bezel action and overall finishing as standout features for its price point. Some owners find the 43mm case size substantial, with one noting it felt big, thick, and heavy on a 6.5-inch wrist, though others consider it a perfect size. The movement's power reserve is noted as less than newer variants by one reviewer. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and robust build at an accessible price.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.