Side by side

Hamilton Jazzmaster Performer AutochronovsSeiko Prospex Land Mechanical GMT

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

Jazzmaster Performer Autochrono
HamiltonJazzmaster Performer Autochrono
MSRP $2,645
Prospex Land Mechanical GMT
SeikoProspex Land Mechanical GMT
MSRP $1,150
What people say

Owners + reviewers, side by side

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

Hamilton Jazzmaster Performer Autochrono

Owners widely praise the Hamilton Jazzmaster Performer Autochrono for its versatile design, clean no-date dial, and comfortable wearability. Reviewers note the 42mm model features dauphine hands and a tachymeter bezel, powered by the H-31 automatic chronograph movement with a 60-hour power reserve. Some owners report an 80-hour power reserve and find the watch a beautiful choice for daily wear, while others express concerns about the price point and the durability of the black bezel. Accuracy averages just over 2 seconds per day, though one owner experienced an internal issue requiring service. On balance, owners and reviewers appreciate the Hamilton Jazzmaster Performer Autochrono for its attractive styling and daily wearability, despite some reservations regarding its price and bezel durability.

Seiko Prospex Land Mechanical GMT

Owners widely praise the Seiko Prospex Land Mechanical GMT for its faithful reconstruction of a classic design, comfortable bracelet, and attractive gray dial with a bubbly crystal. Reviewers highlight its handsome everyday sports watch appeal, solid specifications, and classic Seiko diver aesthetics, offering great value. However, community members are divided on the 6R movement's accuracy, with some reporting significant deviations even after regulation, while others find it competitive for the price. A point of contention is the GMT function, with some wishing for a "flyer" style local jump GMT instead of the "caller" type, and the internal compass bezel is described as finicky and difficult to read. Owners generally consider the Seiko Prospex Land Mechanical GMT overpriced at its retail price, suggesting better value is found on sale or closer to $700.

At a glance

14 of 29 specs differ
Diameter
Jazzmaster Performer Autochrono42mm
Prospex Land Mechanical GMT39.5mm
Power Reserve
Jazzmaster Performer Autochrono60h
Prospex Land Mechanical GMT72h
Water Resistance
Jazzmaster Performer Autochrono100m
Prospex Land Mechanical GMT200m
MSRP
Jazzmaster Performer Autochrono$2,645
Prospex Land Mechanical GMT$1,150

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
42mm
39.5mm
Thickness
15.22mm
13.6mm
Lug-to-Lug
46mm
46.4mm
Lug Width
22mm
20mm
Water Resistance
100m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
H-31
6R54
Power Reserve
60h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$2,645
$1,150
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