Side by side

Seiko Prospex SPEEDTIMER Mechanical ChronographvsStudio Underd0g Mint Choc Chip (Gen3)

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

At a glance

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

Full specifications

Case

5 specs
Diameter
42mm
38.5mm
Thickness
14.6mm
Lug-to-Lug
49.5mm
Lug Width
20mm
Water Resistance
100m

Crystal & Dial

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

Movement

3 specs
Caliber
8R48
Power Reserve
45h
40h
Jewels
34
25

Pricing

1 specs
MSRP
$2,500
$550

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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 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 Mint Choc Chip (Gen3)

Owners and reviewers praise the Studio Underd0g Mint Choc Chip (Gen3) for its unique, visually striking design, featuring an asymmetrical dial, textured two-tone finish, orange chrono hand tips, and chocolate chip hour markers, all housed in a comfortable 38.5mm case with a hand-winding SeaGull ST-1901 movement and a goat-skin strap. Some owners, however, find the watch overpriced for its movement and dial quality, and a few feel it appears toy-like on larger wrists. Overall, owners and reviewers value the Studio Underd0g Mint Choc Chip (Gen3) for its distinctive aesthetic and comfortable wear, despite some reservations about price and perceived scale.

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