Side by side

Sternglas Naos Edition SportvsFormex Reef 39.5 mm

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

Naos Edition Sport
SternglasNaos Edition Sport
MSRP $269
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

13 of 29 specs differ
Diameter
Naos Edition Sport38mm
Reef 39.5 mm39.5mm
Power Reserve
Naos Edition Sport
Reef 39.5 mm56h
Water Resistance
Naos Edition Sport50m
Reef 39.5 mm300m
MSRP
Naos Edition Sport$269
Reef 39.5 mm$2,230

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
38mm
39.5mm
Thickness
8mm
11mm
Lug-to-Lug
41mm
45.5mm
Lug Width
20mm
22mm
Water Resistance
50m
300m

Crystal & Dial

2 specs
Dial Color
Bahama Blue
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
Ronda 715
Sellita SW300-1
Type
Quartz
Automatic
Power Reserve
56h
Jewels
25

Pricing

1 specs
MSRP
$269
$2,230

Follow this matchup

Get a note when Sternglas Naos Edition Sport vs Formex Reef 39.5 mm 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.

Sternglas Naos Edition Sport

Owners widely praise the Sternglas Naos Edition Sport for its durability and refined daily wearability, easily transitioning between casual and dressier occasions. The sapphire crystal remains scratchless, and the steel case holds up well, though some users report minor bezel micro-scratching. One owner found the original tan strap showed significant wear and fraying within a year, necessitating a replacement. Opinions are split on the watch's aesthetic; some describe it as underwhelming with a printed-on face, small font, and toy-like hands, feeling cheap and looking worse in person, while others love the watch and find it looks fantastic. Some owners in the line also note that certain variants wear smaller than expected, with a desire for smaller case sizes for slender wrists. On balance, owners rate the Sternglas Naos Edition Sport highly for its durable construction and versatile design, despite some reservations about its dial finishing and strap quality.

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.

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.