Side by side

Oris Big Crown DiamondsvsGruppo Gamma Field III GMT

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

Big Crown Diamonds
OrisBig Crown Diamonds
MSRP $3,300
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

18 of 29 specs differ
Diameter
Big Crown Diamonds34mm
Field III GMT40mm
Power Reserve
Big Crown Diamonds42 hoursh
Field III GMT41h
Water Resistance
Big Crown Diamonds50m
Field III GMT200m
MSRP
Big Crown Diamonds$3,300
Field III GMT$459

Full specifications

Case

8 specs
Category
GMT
Diameter
34mm
40mm
Thickness
14mm
Lug-to-Lug
48.5mm
Lug Width
17mm
22mm
Finish
Brushed and polished
Water Resistance
50m
200m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Yes
Indices
Applied
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
531
Seiko Instruments NH38A
Beat Rate
4 vph
28,800 vph
Power Reserve
42 hoursh
41h
Jewels
25
Complications
None
GMT

Pricing

1 specs
MSRP
$3,300
$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.

Oris Big Crown Diamonds

Owners widely praise the Oris Big Crown Diamonds for its timeless design, vintage charm, and recognizable details like cathedral hands and the pointer date function. Reviewers highlight the stunning gradient dial and the "Bullseye" tuxedo dial as particularly beautiful. The 38mm case is considered versatile, and the watch offers remarkable value. However, some owners note the standard Sellita movement has a short power reserve and plain finishing, and the strap is not durable. A reviewer points out slightly imperfect Super-LumiNova printing on the hour numerals, and one owner finds the two-tone bracelet overly flashy. On balance, owners and reviewers rate the Oris Big Crown Diamonds highly for its unique design and value 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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