Seiko Prospex SpeedtimervsUndone Sport Speedy

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Seiko Prospex Speedtimer

MSRP $750

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Buy from Seiko Used on eBay

Undone Sport Speedy

MSRP $285

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Buy from Undone Used on eBay

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Prospex Speedtimer

Sport Speedy

Diameter

Across the case, crown excluded.

41.4mm

40mm

Lug-to-Lug

The number that decides fit.

45.9mm

n/a

Thickness

How it sits under a cuff.

13mm

n/a

Water Resistance

Rated in meters.

100m

highest

30m

MSRP

Sticker price, new.

$750

$285

lowest

Movement

What drives the hands.

Seiko V192

Seiko VK64

Spec

Prospex Speedtimer

Sport Speedy

Case

5 specs

Diameter

41.4mm

40mm

Thickness

13mm

n/a

Lug-to-Lug

45.9mm

n/a

Lug Width

21mm

n/a

Water Resistance

100m

30m

Crystal & Dial

5 specs

Crystal

Sapphire

n/a

Crystal Shape

Curved

n/a

AR Coating

Anti-reflective coating on inner surface

n/a

Dial Color

White

n/a

Lume

LumiBrite on hands and index(es)

None

Movement

3 specs

Caliber

Seiko V192

Seiko VK64

Type

Quartz

Meca-Quartz

Power Reserve

n/a

Pricing

1 specs

MSRP

$750

$285

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Reviews

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 beautiful dial colors, with specific mentions of ice blue and cream, and its vintage-inspired design. Some find the 39mm case size, which wears smaller than its 41.4mm specification due to short lugs, fits perfectly on smaller wrists. However, owners are split on value, with some considering it a beautiful and incredibly valuable watch, while others question the price for a solar quartz movement and find the 13mm thickness notable. One reviewer noted the lack of quick-release or micro-adjustment on the bracelet. Overall, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its striking dial designs and compact, vintage-inspired wearability.

From video reviewers

The solar-powered chronograph movement is a key strength. The bracelet finishing is a potential area for improvement. Reviewers are split on whether the aesthetic successfully revives the spirit of the original "Pogue."

Owners praise the Undone Sport Speedy's vintage chronograph aesthetic and the accuracy of its meca-quartz movement. Reviewers highlight the extensive customization options and value at $315. One owner finds the leather strap stiff and the display case back on a quartz watch unnecessary. Another reviewer notes the meca-quartz VK64 movement's pusher feel and hand reset are mechanical-like, though the movement itself is undecorated. On balance, owners and reviewers rate the Undone Sport Speedy highly for its vintage styling and customization potential at its price point.

Fratello·3