Side by side

Oak & Oscar The Jackson Big EyevsGruppo Gamma Field III GMT Date

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

The Jackson Big Eye
Oak & OscarThe Jackson Big Eye
MSRP $3,150
Field III GMT Date
Gruppo GammaField III GMT Date
MSRP $459

At a glance

15 of 29 specs differ
Diameter
The Jackson Big Eye40mm
Field III GMT Date40mm
Power Reserve
The Jackson Big Eye60 hoursh
Field III GMT Date41h
Water Resistance
The Jackson Big Eye50m
Field III GMT Date200m
MSRP
The Jackson Big Eye$3,150
Field III GMT Date$459

Full specifications

Case

5 specs
Category
Chronograph
GMT
Lug-to-Lug
46.4mm
48.5mm
Lug Width
20mm
22mm
Finish
Brushed
Brushed and polished
Water Resistance
50m
200m

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Underside
Yes
Dial Color
White
Black
Indices
Baton
Applied

Movement

5 specs
Caliber
Eterna Caliber 39 (Cal. 3907M)
Seiko Instruments NH38A
Type
Manual
Automatic
Beat Rate
4 vph
28,800 vph
Power Reserve
60 hoursh
41h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$3,150
$459

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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.

Oak & Oscar The Jackson Big Eye

Oak & Oscar The Jackson Big Eye is praised for its balanced design and fine details, featuring a prominent "Big Eye" 30-minute sub-register for improved readability, reminiscent of vintage chronographs. It is powered by the Eterna EMC 3907M manual wind movement with a 60-hour power reserve, column wheel, and flyback function, housed in a 40mm stainless steel case. This limited edition of 50 pieces was priced at $3,150 and included two Horween leather straps and a wallet. On balance, reviewers highlight the Jackson Big Eye's enthusiast-spec chronograph function and readable subdial as key strengths.

Gruppo Gamma Field III GMT Date

Owners widely praise the Gruppo Gamma Field III GMT Date for its awesome looks, quality, and good value. The watch features a 40mm brushed 316L stainless steel case, box sapphire crystal, and 200m water resistance, powered by a Seiko NH34A movement. Some reviewers note the NH34A movement's accuracy can range from -20~+40 seconds per day, though one reviewer reported +5 seconds per day with a regulated movement. The dial's dense layout with Arabic numerals can be overwhelming for some, and one owner found the size unsuitable for smaller wrists. On balance, owners rate the Gruppo Gamma Field III GMT Date highly for its impressive finishing and toolish design at its price point.

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