Side by side

Spinnaker Tesei Mille Metri GMTvsTissot Gentleman Open Heart

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

Tesei Mille Metri GMT
SpinnakerTesei Mille Metri GMT
MSRP $559
Gentleman Open Heart
TissotGentleman Open Heart
MSRP $1,025

At a glance

15 of 29 specs differ
Diameter
Tesei Mille Metri GMT44mm
Gentleman Open Heart40mm
Power Reserve
Tesei Mille Metri GMT40h
Gentleman Open Heart80h
Water Resistance
Tesei Mille Metri GMT1,000m
Gentleman Open Heart100m
MSRP
Tesei Mille Metri GMT$559
Gentleman Open Heart$1,025

Full specifications

Case

7 specs
Category
GMT
Chronograph
Diameter
44mm
40mm
Thickness
16mm
11.5mm
Lug-to-Lug
52mm
40mm
Lug Width
22mm
21mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
1000m
100m

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Black
Silver
Indices
Applied
Indexes
Lume
None
Super-LumiNova ®

Movement

2 specs
Caliber
Seiko NH34A
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$559
$1,025

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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 Tesei Mille Metri GMT

The Spinnaker Fleuss Midnight Black features a reliable and accurate Japanese TMI NH35 Automatic Movement with 3 Hands and Date. A potential drawback is the watch's relatively low 15 ATM water-resistance rating compared to other watches in its class. Reviewers disagree on the watch's suitability for larger wrists, with one reviewer noting a 43mm diameter and 51mm lug-to-lug fit, while the other mentions a 51mm lug-to-lug measurement.

Tissot Gentleman Open Heart

Owners widely praise the Tissot Gentleman Open Heart for its versatile dressy-sporty aesthetic and elegant sunburst dial finish, with one owner preferring its less shiny blue dial compared to other versions. The watch offers excellent fit and bracelet adjustability, and its modified Powermatic 80 movement achieves COSC-level accuracy of -3 to +5 seconds/day, though the seconds hand movement is slightly less smooth at 6 movements per second. However, one owner reported the watch arrived non-functional, requiring a return due to an inoperable movement. On balance, owners rate the Tissot Gentleman Open Heart highly for its aesthetic appeal and accurate timekeeping, despite a reported instance of a faulty movement.

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