Side by side

Bremont Supermarine ChronovsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch

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

Supermarine Chrono
BremontSupermarine Chrono
MSRP $6,850

At a glance

12 of 29 specs differ
Diameter
Supermarine Chrono43mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Supermarine Chrono40h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Supermarine Chrono300m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Supermarine Chrono$6,850
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
43mm
42mm
Thickness
15.87mm
13.3mm
Lug-to-Lug
48.6mm
Lug Width
22mm
20mm
Material
Stainless Steel (DLC coated)
Stainless Steel

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
BE-50AE
6R54
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$6,850
$1,700

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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.

Bremont Supermarine Chrono

The Bremont Supermarine Chrono's black dial and understated bezel markings allow it to transition effectively from rugged use to evening events. On balance, owners and reviewers find the Bremont Supermarine Chrono to be a handsome and functional watch, with its versatile dial design being a key strength.

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch offers a 300-meter depth rating and a caller-style GMT complication powered by the Caliber 6R54 movement, which provides a 72-hour power reserve. Reviewers note its refined clasp with extensive micro-adjustment. However, the movement's accuracy, ranging from +25 to -15 seconds per day, is considered a drawback by some. Overall, reviewers highlight the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch as a good reminder of Seiko's value, despite the wide accuracy range of its movement.

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