Side by side

CWC Ti300 Titanium 5 Quartz Divers WatchvsSeiko Astron

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.

CWC Ti300 Titanium 5 Quartz Divers Watch

Owners widely praise the CWC Ti300 Titanium 5 Quartz Divers Watch as an amazing value, highlighting its titanium construction, High Accuracy Quartz (HAQ) movement, and fixed lugs that embody a true tool watch ethos. One owner found the watch too small for their preference, listing it new in box for $1,200, while another notes its price at $1,415. On balance, owners rate the CWC Ti300 Titanium 5 Quartz Divers Watch highly for its tool watch design and excellent value proposition.

Seiko Astron

The Seiko Astron is widely praised for its advanced timekeeping technology, including GPS and radio wave synchronization, offering grab-and-go convenience and exceptional accuracy, with some users reporting +/- 15 seconds per month or even 1/2 second per day for its autonomous quartz movement. Owners appreciate its well-finished titanium cases and bracelets, detailed dials with high-contrast markers, and lightweight, comfortable wearability. However, some find the price point of around $2,000 to $2,400 expensive, noting that GPS sync works best outdoors and that certain models lack screw-down casebacks, impacting water resistance. The lume is described as sparse on some models, and recessed buttons require tools to operate. Overall, owners and reviewers rate the Seiko Astron highly for its cutting-edge technology and comfortable, well-finished design, with the value proposition becoming more compelling when models are found at a discount.

From video reviewers

The watch's automatic time zone adjustment via GPS is a notable feature. The watch's solar-powered charging system can take up to 6 months to fully charge, which may not be ideal for users who need a quick power boost.

At a glance

13 of 29 specs differ
Diameter
Ti300 Titanium 5 Quartz Divers Watch45mm
Astron43.3mm
Power Reserve
Ti300 Titanium 5 Quartz Divers Watch
Astron
Water Resistance
Ti300 Titanium 5 Quartz Divers Watch300m
Astron100m
MSRP
Ti300 Titanium 5 Quartz Divers Watch$999
Astron$2,700

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
45mm
43.3mm
Thickness
12.1mm
13.4mm
Lug-to-Lug
47mm
49.5mm
Lug Width
20mm
14mm
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Curved
AR Coating
Yes
Super-clear coating
Dial Color
CWC Ti300 Titanium 5 Quartz Divers Watch
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
ETA F06.402
Seiko 5X83
Jewels
0
14

Pricing

1 specs
MSRP
$999
$2,700
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