Side by side

Seiko Prospex SeavsLongines CONQUEST

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

Prospex Sea
SeikoProspex Sea
MSRP $795
CONQUEST
LonginesCONQUEST
MSRP $900

At a glance

19 of 29 specs differ
Diameter
Prospex Sea34mm
CONQUEST41mm
Power Reserve
Prospex Sea40h
CONQUEST40h
Water Resistance
Prospex Sea200m
CONQUEST300m
MSRP
Prospex Sea$795
CONQUEST$900

Full specifications

Case

7 specs
Diameter
34mm
41mm
Thickness
8.7mm
11.8mm
Lug-to-Lug
40.8mm
51mm
Lug Width
16mm
21mm
Finish
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Anti-reflective coating on inner surface
Underside
Dial Color
Black
Blue
Indices
Applied
Applied Arabic numerals and indexes
Lume
LumiBrite on hands and index(es)
Super-LumiNova

Movement

6 specs
Caliber
6N01
L157.3
Beat Rate
28,800 vph
25,200 vph
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$795
$900

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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.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

Longines CONQUEST

Owners widely praise the Longines CONQUEST for its excellent finishing, comfortable wearability, and strong value, with many highlighting its versatility and smooth hand-winding action. Specific points of praise include the clean design, 30 ATM water resistance, and curved lugs contributing to comfort. However, reviewers and owners consistently note the bracelet's lack of micro-adjustment and the lume is considered poor by multiple sources. Some find the design too simple, and one owner felt the watch was underwhelming in person. On balance, owners rate the Longines CONQUEST highly for its exceptional finishing and value at its price point.

From video reviewers

The sunburst dial is a frequently praised aesthetic feature. Reviewers noted the quartz movement as a potential drawback for enthusiasts seeking automatic options.

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