Side by side

Nivada Grenchen F77 MK2 41mm AutomaticvsZelos Helica

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
Helica
ZelosHelica
MSRP $499

At a glance

14 of 29 specs differ
Diameter
F77 MK2 41mm Automatic41mm
Helica39mm
Power Reserve
F77 MK2 41mm Automatic38h
Helica40h
Water Resistance
F77 MK2 41mm Automatic100m
Helica100m
MSRP
F77 MK2 41mm Automatic$1,460
Helica$499

Full specifications

Case

7 specs
Category
Sport
Diver
Diameter
41mm
39mm
Thickness
12.2mm
10.5mm
Lug-to-Lug
46.2mm
39mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Caseback
316L Steel Caseback
Solid

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Meteorite
39 - Wave MOP
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Soprod M100
Miyota 9015
Beat Rate
28 vph
28,800 vph
Power Reserve
38h
40h

Pricing

1 specs
MSRP
$1,460
$499

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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.

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.

Zelos Helica

Owners widely praise the Zelos Helica for its stunning, often color-shifting dials, with specific mentions of the MoP, slate grey, 'Steel Blue', and red opal variants being particularly captivating and artful. The 39mm case size is noted as fitting well on smaller wrists, and the overall build quality and finishing for the price are frequently highlighted as impressive, with one owner calling it "a lot of watch for the price." Some owners appreciate the novel bracelet designs and full lume dials, while others find the bracelet and clasp edges sharp or the clasp lacking on-the-fly adjustment. Opinions on the date window are mixed, with one owner disliking it. The Zelos Helica Moonphase was considered cluttered by one owner, and its $1K USD price point was felt to be steep by another, though popular variants sold out rapidly. Overall, owners rate the Zelos Helica highly for its striking dial designs and impressive value proposition.

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