Side by side

Tudor Black Bay 58 BronzevsZelos Swordfish Field 38

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

Black Bay 58 Bronze
TudorBlack Bay 58 Bronze
MSRP $5,850
Swordfish Field 38
ZelosSwordfish Field 38
MSRP $399

At a glance

17 of 29 specs differ
Diameter
Black Bay 58 Bronze39mm
Swordfish Field 3838mm
Power Reserve
Black Bay 58 Bronze70h
Swordfish Field 3840h
Water Resistance
Black Bay 58 Bronze200m
Swordfish Field 38200m
MSRP
Black Bay 58 Bronze$5,850
Swordfish Field 38$399

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
39mm
38mm
Thickness
11.9mm
12mm
Lug-to-Lug
46mm
38mm
Material
Bronze
316L Stainless Steel
Finish
Brushed + Satin
Brushed and polished
Caseback
Engraved
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Bronze

Movement

6 specs
Caliber
MT5400
Seiko NH35
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$5,850
$399

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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 Bronze

The Tudor Black Bay 58 Bronze is widely praised for its unique, evolving aesthetic driven by its developing bronze patina, which owners describe as an incremental pleasure and a conversation starter. Reviewers highlight its warm, vintage feel, achieved through the aging bronze case, root-beer brown bezel, and rose gold-toned dive scale, complemented by applied Arabic numerals on a 39mm case. The MT5400 movement is noted for its 70-hour power reserve and COSC-certified accuracy, with one owner reporting a net loss of about one second every three days. The bezel action is described as firm and reassuring, tighter than steel Black Bay models. Owners report the watch wears well dressed up or down, and its finishing is favorably compared to higher-end brands. However, some owners note the soft bronze case scratches easily and can cause blueing on the wrist in hot weather.

Zelos Swordfish Field 38

Owners widely praise the Zelos Swordfish Field 38 for its comfortable dimensions, noting they are acceptable both on paper and in practice. The Seiko NH35 movement is highlighted for its exceptionally smooth winding feel. On balance, owners rate the Zelos Swordfish Field 38 highly for its value and comfortable wearability.

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