Side by side

Seiko 62MASvsTudor Black Bay 54

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

62MAS
Seiko62MAS
MSRP $1,200
Black Bay 54
TudorBlack Bay 54
MSRP $4,725
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko 62MAS

The Seiko Prospex Sea 1965 Heritage Diver's Watch is praised for its vintage-inspired finishing, crisp bezel action, and build quality. Owners widely report the movement averages within +/- 10 seconds per day, though some note accuracy issues. The 40mm case size is considered by some to wear larger than expected, and the price point is a subject of debate, with some finding it too high and others fair. The watch features a 72-hour power reserve from the Caliber 6R55 movement, a 300-meter depth rating, and a box-shaped sapphire crystal. On balance, owners and reviewers appreciate the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined design and solid build quality, despite some reservations about its price and perceived size.

Tudor Black Bay 54

The Tudor Black Bay 54 is widely praised for its compact 37mm size and thin 11.2mm case, offering surprising wrist presence and comfortable wearability with a vintage aesthetic. Reviewers highlight its robust 200-meter water resistance, clean design, and modern features without compromise, powered by Tudor's MT5400 movement with a 70-hour power reserve. One reviewer noted a preference for true vintage or more modern Tudor offerings over time. On balance, reviewers rate the Tudor Black Bay 54 highly for its faithful vintage design and comfortable, modern dive watch experience.

From video reviewers

The 37mm case with a lug-to-lug measurement around 45.8mm-46mm offers excellent wearability, fitting comfortably on smaller wrists. The in-house MT5400 movement provides a substantial 70-hour power reserve. Reviewers did not reach a consensus on any weaknesses or points of disagreement.

At a glance

13 of 29 specs differ
Diameter
62MAS40.5mm
Black Bay 5437mm
Power Reserve
62MAS70h
Black Bay 5470h
Water Resistance
62MAS200m
Black Bay 54200m
MSRP
62MAS$1,200
Black Bay 54$4,725

Full specifications

Case

5 specs
Diameter
40.5mm
37mm
Thickness
13.2mm
11.2mm
Lug-to-Lug
47.6mm
0mm
Finish
Polished + Satin
Caseback
Solid screw-down

Crystal & Dial

5 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Blue
Indices
Applied
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova

Movement

2 specs
Caliber
Seiko 6R35
MT5400
Jewels
24
0

Pricing

1 specs
MSRP
$1,200
$4,725
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