Side by side

Seiko Prospex SPEEDTIMERvsTudor Pelagos FXD Chrono

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

Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $3,000
Pelagos FXD Chrono
TudorPelagos FXD Chrono
MSRP $6,375

At a glance

14 of 29 specs differ
Diameter
Prospex SPEEDTIMER42.5mm
Pelagos FXD Chrono43mm
Power Reserve
Prospex SPEEDTIMER45h
Pelagos FXD Chrono70h
Water Resistance
Prospex SPEEDTIMER100m
Pelagos FXD Chrono100m
MSRP
Prospex SPEEDTIMER$3,000
Pelagos FXD Chrono$6,375

Full specifications

Case

6 specs
Diameter
42.5mm
43mm
Thickness
15.1mm
13.2mm
Lug-to-Lug
50mm
46mm
Lug Width
20mm
22mm
Material
Stainless Steel
43mm black carbon composite case with matt finish · Lugs: 22mm lug width · Case thickness: 13.2mm
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

4 specs
Caliber
8R46
MT5813
Power Reserve
45h
70h
Jewels
34
25
Complications
None
Chronograph

Pricing

1 specs
MSRP
$3,000
$6,375

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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 attractive vintage-inspired design and compact 39mm size, with one owner finding the red dial unique and gorgeous. Reviewers and owners note the solar-powered quartz movement, with one owner considering $700 expensive for this specification and another wishing for a thinner case. The SPEEDTIMER is described as a sturdy and reliable everyday watch, though one owner questioned its resale value. Overall, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its stylish, compact design and solar functionality, despite some finding the price point and case thickness slightly high.

Tudor Pelagos FXD Chrono

The Tudor Pelagos FXD Chrono is widely praised for its lightweight construction, with owners highlighting its carbon composite case and titanium case back contributing to exceptional comfort and wearability, even on smaller wrists. Reviewers and owners alike commend its excellent legibility, robust build quality, and impressive bezel action, with a smooth winding feel noted by one owner. The COSC-certified MT5813 movement provides a 70-hour power reserve. However, some find the tachymeter scale difficult to read, and the 45-minute counter impractical for cycling. One owner reported poor timekeeping with a deviation of -3 to -3.5 seconds per day, while another saw accuracy within a couple of seconds per day, and a separate owner noted three services in under two years. The included straps are frequently criticized as less appealing or having short length, and some question the watch's overall utility for cyclists compared to dedicated head units.

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