Side by side

Nivada Grenchen F77 MK2 41mm AutomaticvsFormex Reef 39.5 mm

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

F77 MK2 41mm Automatic
Nivada GrenchenF77 MK2 41mm Automatic
MSRP $1,460
Reef 39.5 mm
FormexReef 39.5 mm
MSRP $2,230

At a glance

12 of 29 specs differ
Diameter
F77 MK2 41mm Automatic41mm
Reef 39.5 mm39.5mm
Power Reserve
F77 MK2 41mm Automatic38h
Reef 39.5 mm56h
Water Resistance
F77 MK2 41mm Automatic100m
Reef 39.5 mm300m
MSRP
F77 MK2 41mm Automatic$1,460
Reef 39.5 mm$2,230

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
41mm
39.5mm
Thickness
12.2mm
11mm
Lug-to-Lug
46.2mm
45.5mm
Water Resistance
100m
300m
Caseback
316L Steel Caseback
Solid

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Meteorite
Bahama Blue

Movement

3 specs
Caliber
Soprod M100
Sellita SW300-1
Beat Rate
28 vph
28,800 vph
Power Reserve
38h
56h

Pricing

1 specs
MSRP
$1,460
$2,230

Follow this matchup

Get a note when Nivada Grenchen F77 MK2 41mm Automatic 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.

Nivada Grenchen F77 MK2 41mm Automatic

The Nivada Grenchen F77 MK2 41mm Automatic is praised for its comfortable wearability, with reviewers highlighting its reworked integrated lug design and slim case profile. The "carbon effect" basketweave dial is frequently cited as a modern, distinctive touch on the retro design. The watch is powered by the Soprod P024 automatic movement, which has a 38-hour power reserve. Some find the gold-plated version loud, and the dauphine hands lack lume. The stainless steel model is priced at $1,460 to $1,560 USD. On balance, reviewers consider the Nivada Grenchen F77 MK2 41mm Automatic a strong integrated bracelet option at its price point, lauded for its unique design and comfortable fit.

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.