Side by side

Glycine Airpilot ChronovsSeiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Glycine Airpilot Chrono

Owners widely praise the Glycine Airpilot Chrono for its exceptional value, with many stating it is worth twice its price and offers finishing comparable to higher-end brands. Specific highlights include the dial's depth and versatility, the symmetrical design with the date at 6 o'clock, the well-integrated 24-hour complication, and the applied indices. The screw-down crown, sapphire crystal, and 100m water resistance are also frequently cited as strong points, as is the good lume. Some owners find the red chapter ring numerals too small, and the standard Sellita SW200 movement and average clasp are noted as drawbacks. The 41mm case with a 52mm lug-to-lug distance is considered by some to wear large on smaller wrists, though curved lugs help with wearability. Overall, owners rate the Glycine Airpilot Chrono highly for its stunning design and exceptional value at its price point.

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.

At a glance

17 of 29 specs differ
Diameter
Airpilot Chrono44mm
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition42mm
Power Reserve
Airpilot Chrono
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
Water Resistance
Airpilot Chrono100m
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition100m
MSRP
Airpilot Chrono$1,895
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition$2,400

Full specifications

Case

6 specs
Diameter
44mm
42mm
Thickness
12mm
12.9mm
Lug-to-Lug
49.6mm
Lug Width
22mm
20mm
Finish
Caseback

Crystal & Dial

5 specs
Crystal Shape
Curved
AR Coating
Super-clear coating
Dial Color
Blue
Indices
Lume
Luminous
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
5X83
Beat Rate
0 vph
Power Reserve
0h
Jewels
4
14
Complications
Date
None

Pricing

1 specs
MSRP
$1,895
$2,400
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