Side by side

Seiko Prospex Sea 1965 Heritage Diver's WatchvsTudor Pelagos 39

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

What people say

Owners + reviewers, side by side

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

Seiko Prospex Sea 1965 Heritage Diver's Watch

The Seiko Prospex Sea 1965 Heritage Diver's Watch is praised for its refined engineering and updated features, including a 300m water resistance and a 72-hour power reserve from the Caliber 6R55 movement in a 40mm case. Owners note its better build quality and interesting finishing with a mix of polished and brushed surfaces. The "Tranquil Teal" variant features a jewel-toned dial with a rippling-water pattern. However, some owners consider the price too high, and concerns exist regarding the accuracy of the 6R movements, with some reporting theirs run slow. One review notes a reflective dial that impacts legibility. On balance, owners and reviewers appreciate the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined design and improved specifications over previous generations, despite some reservations about movement accuracy and price.

Tudor Pelagos 39

The Tudor Pelagos 39 is widely praised for its comfortable 39mm titanium case, making it a versatile and refined everyday dive watch with a sunray dial and bezel. Owners and reviewers consistently highlight its wearability, with specific mention of its 11.8mm thickness and 107-gram weight. Some owners note the titanium case scuffs easily but that the matte finish hides scratches well and they can be buffed out. Criticisms include a 21mm lug width deemed unnecessary by one owner and some find the T-fit clasp edges sharp, though this is disputed by another. The lume is considered acceptable but not class-leading. Overall, owners and reviewers rate the Tudor Pelagos 39 highly for its comfortable dimensions and refined everyday wearability.

At a glance

15 of 29 specs differ
Diameter
Prospex Sea 1965 Heritage Diver's Watch40mm
Pelagos 3940mm
Power Reserve
Prospex Sea 1965 Heritage Diver's Watch72h
Pelagos 3970h
Water Resistance
Prospex Sea 1965 Heritage Diver's Watch300m
Pelagos 39200m
MSRP
Prospex Sea 1965 Heritage Diver's Watch$1,300
Pelagos 39$5,625

Full specifications

Case

7 specs
Thickness
13mm
11.8mm
Lug-to-Lug
46.4mm
0mm
Lug Width
20mm
21mm
Material
Stainless Steel
Grade 2 Titanium
Finish
Satin
Water Resistance
300m
200m
Caseback
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
$578
Lume
LumiBrite on hands, index(es) and bezel
luminescent ceramic composite hour markers

Movement

3 specs
Caliber
6R55
MT5400
Power Reserve
72h
70h
Jewels
24
0

Pricing

1 specs
MSRP
$1,300
$5,625
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