Side by side

Seiko Prospex SPEEDTIMERvsTAG Heuer Formula 1

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

Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $2,200
Formula 1
TAG HeuerFormula 1
MSRP $2,600
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 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.

TAG Heuer Formula 1

Owners widely praise the TAG Heuer Formula 1 for its addictive wearability and the appealing double date windows, with one owner considering it a favorite purchase. The stopwatch function is noted as fun and easy to recalibrate, though the alarm function is considered a potential gimmick by some. One owner found battery replacement challenging and desired a movable bezel. Overall, owners rate the TAG Heuer Formula 1 highly for its engaging features and satisfying ownership experience.

At a glance

20 of 29 specs differ
Diameter
Prospex SPEEDTIMER42mm
Formula 143mm
Power Reserve
Prospex SPEEDTIMER40h
Formula 1
Water Resistance
Prospex SPEEDTIMER100m
Formula 1200m
MSRP
Prospex SPEEDTIMER$2,200
Formula 1$2,600

Full specifications

Case

8 specs
Category
Chronograph
Diver
Diameter
42mm
43mm
Thickness
12.9mm
Lug-to-Lug
49.6mm
Lug Width
20mm
Finish
Brushed and polished
Steel Fine-Brushed/Polished
Water Resistance
100m
200m
Caseback
Solid

Crystal & Dial

6 specs
Crystal
Sapphire
Crystal Shape
Curved
AR Coating
Super-clear coating
Dial Color
Black
Blue
Indices
Applied
Lume
LumiBrite on hands and index(es)
None

Movement

5 specs
Caliber
5X83
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
14
0
Complications
None
Chronograph, Date

Pricing

1 specs
MSRP
$2,200
$2,600
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