Side by side

Breitling Chronomat B01 42vsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch

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.

Breitling Chronomat B01 42

Owners widely praise the Breitling Chronomat B01 42 for its excellent finishing, robust build, and the refined Breitling Manufacture Calibre 01 movement, noting its accurate timekeeping and positive pusher feel. The distinctive Rouleaux bracelet is frequently highlighted for its comfort and quality, contributing to its suitability for daily wear across various settings. However, some owners find the 42mm case and its overall dimensions to be large or thick for smaller wrists, and the polished bezel is noted as a fingerprint magnet. Mixed reactions exist regarding its bold aesthetic, with some appreciating its retro charm and others finding it polarizing, particularly in bicolor configurations. On balance, owners and reviewers rate the Breitling Chronomat B01 42 highly for its well-executed chronograph functionality and distinctive design, with the quality of the bracelet and finishing being key reasons for its positive reception.

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.

At a glance

17 of 29 specs differ
Diameter
Chronomat B01 4242mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Chronomat B01 4270h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Chronomat B01 42200m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Chronomat B01 42$11,150
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Full specifications

Case

7 specs
Thickness
15.1mm
13.3mm
Lug-to-Lug
46mm
48.6mm
Lug Width
22mm
20mm
Material
Stainless Steel & 18k Red Gold
Stainless Steel
Finish
Stainless steel
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
Indices
Applied
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
Breitling B01
6R54
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$11,150
$1,700
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