Side by side

Spinnaker Croft 39 GMTvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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

Croft 39 GMT
SpinnakerCroft 39 GMT
MSRP $445

At a glance

13 of 29 specs differ
Diameter
Croft 39 GMT39mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
Croft 39 GMT40h
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
Croft 39 GMT100m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
Croft 39 GMT$445
Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

5 specs
Category
GMT
Chronograph
Diameter
39mm
42mm
Thickness
13mm
14.6mm
Lug-to-Lug
47mm
49.5mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko NH34A
8R48
Power Reserve
40h
45h
Jewels
25
34

Pricing

1 specs
MSRP
$445
$2,500

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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.

Spinnaker Croft 39 GMT

Owners praise the Spinnaker Croft 39 GMT for its colorful design, NH34 GMT movement, and reasonable price, noting high-standard manufacturing on the case, bezel, and bracelet. One owner finds the 43mm case and 51mm lug-to-lug dimensions too large for the design, preferring a 39-40mm case size. A potential issue with the lume was noted by one user. On balance, owners value the Spinnaker Croft 39 GMT for its attractive design and build quality at its price point, though sizing is a point of contention for some.

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.

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