Side by side

Tudor Black Bay 58vsGruppo Gamma Field III GMT

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

Black Bay 58
TudorBlack Bay 58
MSRP $5,350
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

18 of 29 specs differ
Diameter
Black Bay 5839mm
Field III GMT40mm
Power Reserve
Black Bay 5865h
Field III GMT41h
Water Resistance
Black Bay 58200m
Field III GMT200m
MSRP
Black Bay 58$5,350
Field III GMT$459

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
39mm
40mm
Thickness
11.7mm
14mm
Lug-to-Lug
46mm
48.5mm
Lug Width
20mm
22mm
Finish
Polished + Satin
Brushed and polished
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Yes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
MT5400-U
Seiko Instruments NH38A
Beat Rate
0 vph
28,800 vph
Power Reserve
65h
41h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
GMT

Pricing

1 specs
MSRP
$5,350
$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.

Tudor Black Bay 58

The Tudor Black Bay 58 is widely praised for its superb wearing experience, perfect proportions, and comfortable wearability, with owners anticipating it becoming a Tudor classic. Reviewers highlight its substantial, rugged build quality and significant value, rivaling more expensive timepieces. One owner notes the clasp's sharp shield as a minor annoyance.

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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