Side by side

Bremont ionBirdvsNivada Grenchen Antarctic Spider

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

ionBird
BremontionBird
MSRP $5,800
Antarctic Spider
Nivada GrenchenAntarctic Spider
MSRP $945

At a glance

14 of 29 specs differ
Diameter
ionBird43mm
Antarctic Spider38mm
Power Reserve
ionBird40h
Antarctic Spider38h
Water Resistance
ionBird
Antarctic Spider200m
MSRP
ionBird$5,800
Antarctic Spider$945

Full specifications

Case

8 specs
Category
Pilot
Tool
Diameter
43mm
38mm
Thickness
11.1mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
200m

Crystal & Dial

2 specs
Dial Color
Regular length (15cm - 19cm wrist size)
White
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW200
Power Reserve
40h
38h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$5,800
$945

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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 Antarctic Spider

Owners widely praise the Nivada Grenchen Antarctic for its historically significant design and excellent wearability, particularly its thin case and non-modern sizing. Reviewers note its charming versatility and faithful vintage execution, with one owner highlighting the buttery winding action and another the affordable price point. However, some owners find the dial difficult to read, and the lume is noted as weak. The manual-wind movement's crown re-engagement is described as finicky, and minute marker application has been criticized as imperfect. The beige Super-LumiNova is also considered too yellow by one reviewer. Overall, owners and reviewers rate the Nivada Grenchen Antarctic highly for its faithful vintage design and wearability at an attractive price.

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