Side by side

Zelos Hammerhead (Tantalum LE)vsNOMOS Glashütte Tetra 27 duo

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
Tetra 27 duo
NOMOS GlashütteTetra 27 duo
MSRP $2,090

At a glance

20 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
Tetra 27 duo27.5mm
Power Reserve
Hammerhead (Tantalum LE)40h
Tetra 27 duo53 hoursh
Water Resistance
Hammerhead (Tantalum LE)300m
Tetra 27 duo50m
MSRP
Hammerhead (Tantalum LE)$1,499
Tetra 27 duo$2,090

Full specifications

Case

9 specs
Category
Diver
Dress
Diameter
44mm
27.5mm
Thickness
13mm
6.1mm
Lug-to-Lug
44mm
38.5mm
Lug Width
22mm
18mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
50m
Caseback
Solid

Crystal & Dial

5 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Tantalum LE
White
Indices
Applied

Movement

5 specs
Caliber
Seiko NH35
DUW 4001
Type
Automatic
Manual
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
53 hoursh
Jewels
25
17

Pricing

1 specs
MSRP
$1,499
$2,090

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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.

NOMOS Glashütte Tetra 27 duo

Owners widely praise the NOMOS Glashütte Tetra 27 duo for its ideal small and light wearing dimensions, beautiful dial that shifts with lighting, and gorgeous blued hands, with some finding its 27mm size perfect for vintage preferences. The watch is noted for its precise, Art Deco-inspired design and good finishing. However, some owners and reviewers consider the 27.5mm size too small, labeling it a women's watch, though others find it unisex and note its square shape can make it wear larger. One owner flags the buckle as disappointingly generic and the grey suede strap as prone to getting dirty. Overall, owners and reviewers highly regard the NOMOS Glashütte Tetra 27 duo for its elegant design and comfortable wearability at its price point.

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