Side by side

Sternglas MarusvsFormex Reef 39.5 mm

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

Marus
SternglasMarus
MSRP $485
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

12 of 29 specs differ
Diameter
Marus42mm
Reef 39.5 mm39.5mm
Power Reserve
Marus42h
Reef 39.5 mm56h
Water Resistance
Marus200m
Reef 39.5 mm300m
MSRP
Marus$485
Reef 39.5 mm$2,230

Full specifications

Case

5 specs
Diameter
42mm
39.5mm
Thickness
14mm
11mm
Lug-to-Lug
53.8mm
45.5mm
Lug Width
20mm
22mm
Water Resistance
200m
300m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Bahama Blue
Lume
Luminova grün
Super-LumiNova

Movement

3 specs
Caliber
Miyota 8215
Sellita SW300-1
Power Reserve
42h
56h
Jewels
25

Pricing

1 specs
MSRP
$485
$2,230

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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.

Sternglas Marus

The Sternglas Marus is widely praised for its well-built, heavy feel and excellent bezel action, considered the best in its price range. Despite its 42mm diameter and 52mm lug-to-lug, owners report it fits surprisingly well on slim wrists. A reviewer notes the short seconds hand as a drawback, but highlights the watch as a fun, affordable starting point for a collection, featuring a vibrant Pepsi bezel and an anthracite dial that shifts in appearance, powered by a Miyota 8215 movement for €399. Overall, owners and reviewers rate the Sternglas Marus highly for its robust build and superior bezel at its price point.

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.

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