Side by side

Zelos Hammerhead (Tantalum LE)vsNivada Grenchen Super Antarctic 38mm Automatic

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

Hammerhead (Tantalum LE)
ZelosHammerhead (Tantalum LE)
MSRP $1,499
Super Antarctic 38mm Automatic
Nivada GrenchenSuper Antarctic 38mm Automatic
MSRP $945

At a glance

18 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
Super Antarctic 38mm Automatic38mm
Power Reserve
Hammerhead (Tantalum LE)40h
Super Antarctic 38mm Automatic36h
Water Resistance
Hammerhead (Tantalum LE)300m
Super Antarctic 38mm Automatic100m
MSRP
Hammerhead (Tantalum LE)$1,499
Super Antarctic 38mm Automatic$945

Full specifications

Case

9 specs
Category
Diver
Chronograph
Diameter
44mm
38mm
Thickness
13mm
10.1mm
Lug-to-Lug
44mm
41.9mm
Lug Width
22mm
18mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
300m
100m
Caseback
Solid
Engraved

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Tantalum LE
Blue
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
Seiko NH35
Sellita SW200
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
36h
Jewels
25
18
Complications
None
GMT

Pricing

1 specs
MSRP
$1,499
$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.

Zelos Hammerhead (Tantalum LE)

The Zelos Hammerhead (Tantalum LE) features a forged carbon dial and bezel insert with infused lume. On balance, owners and reviewers rate the Zelos Hammerhead (Tantalum LE) highly for its unique material composition and substantial feel.

Nivada Grenchen Super Antarctic 38mm Automatic

Owners widely praise the Nivada Grenchen Super Antarctic 38mm Automatic's attractive 38mm case proportions and impressive build quality for its $750 price. One owner notes it performs extremely well and shows normal desk diving marks on the clasp. Accuracy figures range from +6 to +9 seconds per day. The Soprod P024 movement has a 38-hour power reserve, and one reviewer found the included rally strap mismatched. Overall, owners rate the Nivada Grenchen Super Antarctic 38mm Automatic highly for its case proportions and build quality at the price.

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