Side by side

Tudor Black Bay ChronovsZelos Spearfish GMT

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

Black Bay Chrono
TudorBlack Bay Chrono
MSRP $7,000
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

20 of 29 specs differ
Diameter
Black Bay Chrono41mm
Spearfish GMT40mm
Power Reserve
Black Bay Chrono70h
Spearfish GMT40h
Water Resistance
Black Bay Chrono200m
Spearfish GMT200m
MSRP
Black Bay Chrono$7,000
Spearfish GMT$999

Full specifications

Case

8 specs
Category
Chronograph
GMT
Diameter
41mm
40mm
Thickness
14.4mm
13mm
Lug-to-Lug
46mm
40mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed + Polished + Satin
Brushed and polished
Caseback
Solid screw-down
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Frost
Indices
Applied

Movement

7 specs
Caliber
MT5813
Sellita SW330-2
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Chronograph, Date
None

Pricing

1 specs
MSRP
$7,000
$999

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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 Chrono

Owners widely praise the Tudor Black Bay Chrono as a fantastic offering. Reviewers note the 41mm case's 200-meter water resistance and its channeling of vintage chronograph design, with the reverse panda dial offering excellent legibility. However, one reviewer points out that the white lume on the panda dial can blend with the hands and markers, and the snowflake hand can obscure the 45-minute chronograph totalizer. Overall, owners rate the Tudor Black Bay Chrono highly for its strong design and legibility, despite minor legibility concerns on certain dial configurations.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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