Side by side

Bremont ionBirdvsNivada Grenchen F77 MK1

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

ionBird
BremontionBird
MSRP $5,800
F77 MK1
Nivada GrenchenF77 MK1
MSRP $1,560

At a glance

16 of 29 specs differ
Diameter
ionBird43mm
F77 MK137mm
Power Reserve
ionBird40h
F77 MK138h
Water Resistance
ionBird
F77 MK1100m
MSRP
ionBird$5,800
F77 MK1$1,560

Full specifications

Case

9 specs
Category
Pilot
Sport
Diameter
43mm
37mm
Thickness
12.1mm
Lug-to-Lug
45mm
Lug Width
22mm
Material
Titanium
Stainless Steel/Titanium/Ceramic
Finish
Brushed and polished
Brushed + Polished + Satin
Water Resistance
100m
Caseback
Solid
Titanium Grade 5

Crystal & Dial

2 specs
Dial Color
Regular length (15cm - 19cm wrist size)
Meteorite Dial, Super Lum. White Dots, Shiny Light Gun Color Applied Indexes
Lume
None
x1

Movement

4 specs
Caliber
Soprod Newton P092
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
38h
Complications
None
GMT

Pricing

1 specs
MSRP
$5,800
$1,560

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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.

Bremont ionBird

Owners report the Bremont ionBird is overpriced and features a printed dial with a poorly placed date window at 4:30, which some find visually disruptive. However, some owners suggest its case finishing is superior to competitors. The 43mm titanium Bremont ionBird GMT is powered by a COSC-certified BE-93-2AV automatic movement and retails for $5,795. On balance, owners and reviewers find the Bremont ionBird's date window placement and price point to be significant drawbacks.

Nivada Grenchen F77 MK1

Owners widely praise the Nivada Grenchen F77 MK1 for its vintage charm, Genta-inspired design with unique character, and comfortable 37-38mm wearability on average wrists, highlighting its legible basket-weave dial and solid case build with excellent crown grip. The integrated bracelet's connection to the case is noted to increase effective lug-to-lug distance, and one owner criticizes the crown action as stiff and gritty. The Soprod P024 movement provides a 38-hour power reserve. On balance, owners and reviewers find the Nivada Grenchen F77 MK1 a compelling value proposition due to its distinctive dial and overall build quality, despite some reservations about its winding feel and price.

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