Side by side

Zelos Hammerhead (Tantalum LE)vsPraesidus A-5 UDT

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
A-5 UDT
PraesidusA-5 UDT
MSRP $645

At a glance

9 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
A-5 UDT38mm
Power Reserve
Hammerhead (Tantalum LE)40h
A-5 UDT40h
Water Resistance
Hammerhead (Tantalum LE)300m
A-5 UDT200m
MSRP
Hammerhead (Tantalum LE)$1,499
A-5 UDT$645

Full specifications

Case

6 specs
Diameter
44mm
38mm
Thickness
13mm
Lug-to-Lug
44mm
Lug Width
22mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Tantalum LE
Blue

Movement

1 specs
Caliber
Seiko NH35
Miyota 9015

Pricing

1 specs
MSRP
$1,499
$645

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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.

Praesidus A-5 UDT

The Praesidus A-5 UDT is noted for its historically inspired design, featuring an oversized crown cap and chain that pays homage to WW2 canteen watches. Reviewers highlight its functional dial with embossed, Super-LumiNova filled numerals and markers for legibility, alongside 200m water resistance and a 38mm brushed stainless steel case. Some owners find the 11.7mm thickness problematic, describing it as disproportionately tall. The watch's ana/digi functionality and connection to special operations forces are also praised. On balance, owners and reviewers appreciate the Praesidus A-5 UDT for its unique historical design elements and functional dial.

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