Side by side

Seiko Prospex SPEEDTIMERvsZelos Hammerhead V3 300m Titanium

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

Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $2,200
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559

At a glance

16 of 29 specs differ
Diameter
Prospex SPEEDTIMER42mm
Hammerhead V3 300m Titanium44mm
Power Reserve
Prospex SPEEDTIMER40h
Hammerhead V3 300m Titanium40h
Water Resistance
Prospex SPEEDTIMER100m
Hammerhead V3 300m Titanium300m
MSRP
Prospex SPEEDTIMER$2,200
Hammerhead V3 300m Titanium$559

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
42mm
44mm
Thickness
12.9mm
13mm
Lug-to-Lug
49.6mm
44mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
100m
300m

Crystal & Dial

5 specs
Crystal
Sapphire
Domed Sapphire
Crystal Shape
Curved
Flat
AR Coating
Super-clear coating
Inner
Dial Color
Black
Ti - Mosaic MOP
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
5X83
Seiko NH35
Type
Quartz
Automatic
Jewels
14
25

Pricing

1 specs
MSRP
$2,200
$559

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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.

Seiko Prospex SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER for its unique dial colors and vintage-inspired design, with many appreciating its compact 39mm case size and 100m or 200m water resistance. Reviewers and owners note the V192 solar movement’s power reserve indicator and its reliability, though some owners express a preference for automatic movements. One owner finds the $700 price for a solar quartz model expensive, while another criticizes the €860 price point and desires a thinner case and a bracelet with quick-release or micro-adjustment. On balance, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its distinctive aesthetic and versatile wearability, despite some reservations about its price and case thickness.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

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