Side by side

Oak & Oscar The Humboldt GMTvsTornek-Rayville TR-660 Acrylic Non-date

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

The bottom line

Profile favors the The Humboldt GMT at 12.5mm thick versus 14.7mm on the TR-660 Acrylic Non-date, so it slips under a cuff with less fuss.

What people say

Owners + reviewers, side by side

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

Oak & Oscar The Humboldt GMT

Oak & Oscar The Humboldt GMT owners widely praise its exceptional accuracy, often running at or near 0 seconds per day, and its comfortable wearability with subtle design details. The construction quality for the price point, sandwich lume, and anti-magnetic properties are also highlighted. Some owners find the bracelet sizing adjustment slightly awkward, and one noted the lume could be brighter. Overall, owners rate the Oak & Oscar The Humboldt GMT highly for its accuracy and comfortable wearability.

Tornek-Rayville TR-660 Acrylic Non-date

The Tornek-Rayville TR-660 Acrylic Non-date is a 40mm bead-blasted stainless steel watch with a utilitarian matte black dial and a moisture detector, measuring 14.7mm thick and 48.5mm lug-to-lug, featuring a subtly domed, AR-coated crystal. One owner notes a preference for a different watch's bezel-locking mechanism but appreciates the TR-660's 20mm lug size. Another owner reports damage to the case and bezel, though it includes unused and worn straps. On balance, owners find the Tornek-Rayville TR-660 Acrylic Non-date to have a timeless design that remains appealing.

Where to get them

Check prices & track

Oak & Oscar The Humboldt GMT
Oak & Oscar The Humboldt GMT
MSRP $2,175
Tornek-Rayville TR-660 Acrylic Non-date
Tornek-Rayville TR-660 Acrylic Non-date
The Humboldt GMT
Oak & OscarThe Humboldt GMT
MSRP $2,175
TR-660 Acrylic Non-date
Tornek-RayvilleTR-660 Acrylic Non-date

At a glance

15 of 29 specs differ
Diameter
The Humboldt GMT39.5mm
TR-660 Acrylic Non-date40mm
Power Reserve
The Humboldt GMT56 hoursh
TR-660 Acrylic Non-date50h
Water Resistance
The Humboldt GMT200m
TR-660 Acrylic Non-date200m
MSRP
The Humboldt GMT$2,175
TR-660 Acrylic Non-date

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
39.5mm
40mm
Thickness
12.5mm
14.7mm
Lug-to-Lug
46.8mm
48.5mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed
Brushed and polished
Caseback
Solid screw-down
Solid

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Underside
Yes
Dial Color
White
Black
Lume
Super-LumiNova
Superluminova

Movement

3 specs
Caliber
Sellita SW330
TMI NH38
Beat Rate
4 vph
28,800 vph
Power Reserve
56 hoursh
50h

Pricing

1 specs
MSRP
$2,175

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