Side by side

Seiko Prospex SeavsStraton Straton Syncro Sports day/date Automatic

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

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

Straton Syncro Sports day/date Automatic

Owners widely praise the Straton Syncro's exceptional finishing, retro design, and well-balanced dial, with one owner calling it Straton's best work. The fully-lumed dial is a significant draw for legibility, though one forum user notes the white dial's lume can cast a cool tone. Criticisms include a busy bezel design with difficult-to-read markings, applied numerals that reduce legibility, and a polished Milanese bracelet that contrasts with the brushed case. The NH36 movement is considered reliable but not highly accurate, and the 40mm case wears larger than its dimensions. The watch is approximately 15mm thick, which may present wearability issues with long sleeves. On balance, owners and reviewers highlight the Straton Syncro's impressive finishing and distinctive retro design as its strongest attributes.

At a glance

17 of 29 specs differ
Diameter
Prospex Sea41mm
Straton Syncro Sports day/date Automatic40mm
Power Reserve
Prospex Sea70h
Straton Syncro Sports day/date Automatic
Water Resistance
Prospex Sea200m
Straton Syncro Sports day/date Automatic200m
MSRP
Prospex Sea$900
Straton Syncro Sports day/date Automatic$499

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
41mm
40mm
Thickness
12.3mm
13mm
Lug-to-Lug
46.9mm
49mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

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

Movement

4 specs
Caliber
6R35
NH36
Beat Rate
28,800 vph
0 vph
Power Reserve
70h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$900
$499
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