Side by side

Orient Bambino Open HeartvsGruppo Gamma Field III GMT

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

Bambino Open Heart
OrientBambino Open Heart
MSRP $315
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

19 of 29 specs differ
Diameter
Bambino Open Heart40.5mm
Field III GMT40mm
Power Reserve
Bambino Open Heart40h
Field III GMT41h
Water Resistance
Bambino Open Heart30m
Field III GMT200m
MSRP
Bambino Open Heart$315
Field III GMT$459

Full specifications

Case

7 specs
Category
GMT
Diameter
40.5mm
40mm
Thickness
12mm
14mm
Lug-to-Lug
46mm
48.5mm
Lug Width
21mm
22mm
Water Resistance
30m
200m
Caseback
Display
Solid

Crystal & Dial

6 specs
Crystal
Mineral
Sapphire
Crystal Shape
Flat
AR Coating
Yes
Dial Color
White
Black
Indices
Applied
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
FT622
Seiko Instruments NH38A
Beat Rate
21,600 vph
28,800 vph
Power Reserve
40h
41h
Jewels
22
25
Complications
None
GMT

Pricing

1 specs
MSRP
$315
$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.

Orient Bambino Open Heart

Owners widely praise the Orient Bambino Open Heart for its dressy style, clean dial, and reliable in-house F6724 automatic movement with hacking and hand-winding. Reviewers and owners highlight its value proposition, with one owner noting it remains a regular wear even after acquiring pricier watches. Some owners find the build quality and stock strap less premium, with one noting the mineral crystal is prone to scratching and another that the movement can be noisy. The 21mm lug width is cited as making strap swapping slightly more complicated. Overall, owners and reviewers rate the Orient Bambino Open Heart highly for its dressy aesthetic and in-house movement at its price point.

Gruppo Gamma Field III GMT

Owners praise the Gruppo Gamma Field III GMT for its look and value, with specific mentions of its sandwich dial and comfortable OEM straps. One owner notes incredible quality for the price across their Gruppo Gamma watches. The watch features a 40mm brushed stainless steel case, box sapphire crystal, and a Seiko NH34A movement with a 41-hour power reserve and stated accuracy of -20~+40 s/day. Some find the lack of a date window a drawback for a GMT, and question its differentiation from other NH34-powered watches. On balance, owners and reviewers find the Gruppo Gamma Field III GMT to be a good value with quality construction for its price point.

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