Side by side

Formex Reef 39.5 mmvsNodus Sector II Sport

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

Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230
Sector II Sport
NodusSector II Sport
MSRP $525

At a glance

14 of 29 specs differ
Diameter
Reef 39.5 mm39.5mm
Sector II Sport38mm
Power Reserve
Reef 39.5 mm56h
Sector II Sport41h
Water Resistance
Reef 39.5 mm300m
Sector II Sport100m
MSRP
Reef 39.5 mm$2,230
Sector II Sport$525

Full specifications

Case

6 specs
Category
Diver
Sport
Diameter
39.5mm
38mm
Thickness
11mm
11.7mm
Lug-to-Lug
45.5mm
47mm
Lug Width
22mm
20mm
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Bahama Blue
Glossy
Lume
Super-LumiNova
Swiss Super-LumiNova® BGW9 Grade A

Movement

3 specs
Caliber
Sellita SW300-1
TMI NH38 (no-date)
Power Reserve
56h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$2,230
$525

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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.

Formex Reef 39.5 mm

The Formex Reef 39.5 mm is widely praised for its refined finishing, comfortable and well-proportioned case design, and impressive specifications for its price point, including COSC-certified Sellita SW300-1 movement and 300m water resistance. Owners and reviewers highlight the tool-less micro-adjust clasp and quick-release spring bars as practical features. Some reviewers note that the 22mm lug width feels slightly disproportionate to the smaller case, and the bracelet could benefit from more taper, though this is a point of contention for some owners who value the overall package. A prototype crown protrusion issue is noted as being addressed for production. On balance, owners and reviewers rate the Formex Reef 39.5 mm highly for its excellent value and well-executed design.

Nodus Sector II Sport

Owners widely praise the Nodus Sector II Sport for its comfortable 38mm wearability, unique three-level sector dial with applied indices, and thin case. Accuracy varies, with one owner reporting plus 4 seconds per day. Criticisms include a bulky clasp with sharp edges, a strong blue AR coating, and the non-reversible bronze bezel patina. The use of an NH38 movement in a watch priced over $500 is also noted. Overall, owners rate the Nodus Sector II Sport highly for its comfortable wearability and unique dial design.

From video reviewers

The crisp, clean dial and robust build quality are consistently praised. The lume on-wrist and water resistance are noted as strengths. Reviewers disagree on the value proposition of the Atlantis Edition due to its scarcity.

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