Side by side

Seiko Prospex SPEEDTIMERvsTAG Heuer Connected Calibre E5

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

Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $725
Connected Calibre E5
TAG HeuerConnected Calibre E5
MSRP $1,600
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's gorgeous, unique red dial and vintage-inspired design, finding it a sturdy and reliable everyday watch. Some owners, however, question the value proposition at around $700 for a solar quartz model, citing its 13-15mm thickness and the 24-hour subdial as drawbacks. Accuracy figures vary, with one owner reporting +1/+2 seconds per day, while another notes the V192 solar movement offers a six-month power reserve. Overall, owners and reviewers find the Seiko Prospex SPEEDTIMER a capable and versatile chronograph, with its striking dial and everyday wearability being the most frequently cited strengths.

From video reviewers

The Seiko Prospex SPEEDTIMER's solar movement provides reliable power without battery replacements and accurate timekeeping, with a claimed accuracy of ±15 seconds per month. A notable trade-off is the watch's slightly thicker profile and somewhat lacking lume brightness. Reviewers disagree on whether the bezel action is smooth and clicky, with one reviewer praising it and the other not mentioning it.

TAG Heuer Connected Calibre E5

Owners widely criticize the TAG Heuer Connected Calibre E5 for its high price, with some finding its components and assembly not justified by the $2000 cost. Several owners report significant issues with battery drain, with Wear OS identified as a primary culprit, and some experience frequent bugs and software update problems, leading to regret over their purchase. One owner noted the lume on the mechanical module lasts only about five minutes. On balance, owners rate the TAG Heuer Connected Calibre E5 poorly due to its high price and reliability concerns.

At a glance

18 of 29 specs differ
Diameter
Prospex SPEEDTIMER39mm
Connected Calibre E540mm
Power Reserve
Prospex SPEEDTIMER40h
Connected Calibre E5
Water Resistance
Prospex SPEEDTIMER100m
Connected Calibre E550m
MSRP
Prospex SPEEDTIMER$725
Connected Calibre E5$1,600

Full specifications

Case

8 specs
Category
Chronograph
Mechanical
Diameter
39mm
40mm
Thickness
13.3mm
14mm
Lug-to-Lug
45.5mm
46mm
Lug Width
20mm
Finish
Brushed and polished
RUBBER
Water Resistance
100m
50m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Indices
Applied
Lume
LumiBrite on hands and index(es)
None

Movement

5 specs
Caliber
V192
Calibre E5
Type
Quartz
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$725
$1,600
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