Side by side

Seiko 62MASvsTudor Black Bay

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

62MAS
Seiko62MAS
MSRP $1,200
Black Bay
TudorBlack Bay
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

Owners widely praise the Tudor Black Bay for its comfortable wearability, robust build, and vintage-inspired aesthetics, with specific mentions of its satisfying winding feel and sturdy bezel action. Reviewers highlight the 39mm Black Bay 58's comfortable size and thinness, while others note the 41mm Master Chronometer's reliable timekeeping and magnetic resistance. Some owners find the GMT hand difficult to distinguish in low light. A recurring point of contention across multiple sources is the lack of on-the-fly micro-adjustment on the bracelet, though some find aftermarket solutions adequate. One owner reported the watch losing two minutes a day after six years, requiring a service. Overall, owners and reviewers rate the Tudor Black Bay highly for its blend of vintage charm, modern robustness, and comfortable wearability.

From video reviewers

The COSC-certified accuracy of the movement is a notable strength. The 14.7mm to 14.8mm thickness is cited as a potential drawback. Reviewers are divided on whether the newer models represent a departure from the Black Bay's heritage design.

At a glance

12 of 29 specs differ
Diameter
62MAS40.5mm
Black Bay41mm
Power Reserve
62MAS70h
Black Bay70h
Water Resistance
62MAS200m
Black Bay200m
MSRP
62MAS$1,200
Black Bay

Full specifications

Case

6 specs
Diameter
40.5mm
41mm
Thickness
13.2mm
14.7mm
Lug-to-Lug
47.6mm
46mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Engraved

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

2 specs
Caliber
6R35
MT5602
Jewels
24
25

Pricing

1 specs
MSRP
$1,200
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