Side by side

Seiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited EditionvsLongines CONQUEST

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

At a glance

20 of 29 specs differ
Diameter
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition42mm
CONQUEST41mm
Power Reserve
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition40h
CONQUEST40h
Water Resistance
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition100m
CONQUEST300m
MSRP
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition$2,400
CONQUEST$900

Full specifications

Case

8 specs
Category
Chronograph
Diver
Diameter
42mm
41mm
Thickness
12.9mm
11.8mm
Lug-to-Lug
49.6mm
51mm
Lug Width
20mm
21mm
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Curved
AR Coating
Super-clear coating
Underside
Dial Color
Black
Blue
Indices
Applied
Applied Arabic numerals and indexes
Lume
LumiBrite on hands and index(es)
Super-LumiNova

Movement

6 specs
Caliber
5X83
L157.3
Beat Rate
28,800 vph
25,200 vph
Jewels
14
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$2,400
$900

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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 Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition

The Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition is praised for its retro design, balanced 42mm case, good finishing, and sapphire crystal. It is powered by the calibre 8R48, featuring a column wheel and vertical clutch, and offers 100m water resistance. Some find its 45-hour power reserve short compared to modern alternatives, and the date window placement is a point of discussion. The solar-powered variant is noted for its compact proportions and character, though some desire thinner cases and improved bracelet micro-adjustment. Overall, owners and reviewers appreciate the SPEEDTIMER's vintage-inspired aesthetics and solid build, with critiques focusing on power reserve and minor functional details.

Longines CONQUEST

Owners widely praise the Longines CONQUEST for its excellent finishing, comfortable wearability, and strong value, with many highlighting its versatility and smooth hand-winding action. Specific points of praise include the clean design, 30 ATM water resistance, and curved lugs contributing to comfort. However, reviewers and owners consistently note the bracelet's lack of micro-adjustment and the lume is considered poor by multiple sources. Some find the design too simple, and one owner felt the watch was underwhelming in person. On balance, owners rate the Longines CONQUEST highly for its exceptional finishing and value at its price point.

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