Side by side

Seiko Prospex SPEEDTIMER Mechanical ChronographvsStudio Underd0g Watermelon (Gen3)

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.

Seiko Prospex SPEEDTIMER Mechanical Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design with a clean, balanced dial and an external tachymeter bezel. Reviewers highlight the upgraded case and bracelet, noting improved comfort and good value for a well-designed chronograph with an in-house movement. The caliber 8R48 movement features a vertical clutch and column wheel with MEMS technology for durability and precision. Points to consider include the 4:30 date window and a 14.6mm thickness, while the 45-hour power reserve is noted as an area for potential improvement. On balance, reviewers find the Seiko Prospex SPEEDTIMER Mechanical Chronograph to be a solid offering with good value, particularly for its design and in-house movement.

Studio Underd0g Watermelon (Gen3)

Owners widely praise the Studio Underd0g Watermelon (Gen3) for its fun, entrepreneurial, and affordable nature, with a design described as "Bauhaus meets Bugs Bunny." However, some find its colors a love-it-or-hate-it feature and others perceive the overall quality and finishing as a tier below comparable watches. Accuracy figures are not specified, but one owner found the watch too thick for their taste. The chronograph function has been noted as potentially sticky or jumpy. On balance, owners are divided on the Studio Underd0g Watermelon (Gen3), with opinions split between its unique design and perceived value for money.

At a glance

18 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical Chronograph42mm
Watermelon (Gen3)38.5mm
Power Reserve
Prospex SPEEDTIMER Mechanical Chronograph45h
Watermelon (Gen3)40h
Water Resistance
Prospex SPEEDTIMER Mechanical Chronograph100m
Watermelon (Gen3)
MSRP
Prospex SPEEDTIMER Mechanical Chronograph$2,500
Watermelon (Gen3)$550

Full specifications

Case

7 specs
Diameter
42mm
38.5mm
Thickness
14.6mm
Lug-to-Lug
49.5mm
Lug Width
20mm
Finish
Brushed and Polished
Water Resistance
100m
Caseback
Solid

Crystal & Dial

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

Movement

6 specs
Caliber
8R48
Beat Rate
0 vph
28,800 vph
Power Reserve
45h
40h
Jewels
34
25
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$2,500
$550
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