Side by side

Seiko Prospex Sea 1968 Heritage Diver's GMT WatchvsDOXA SUB 300

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 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.

DOXA SUB 300

The DOXA SUB 300 is widely praised for its wearability and vibrant color options, with reviewers noting its compelling charm and modern updates like improved lume and a meter-based bezel. Owners report the DOXA SUB 300 wears comfortably, with its cushion case and beads-of-rice bracelet contributing to a smaller perceived size. The COSC-certified ETA 2824-2 movement is noted for its accuracy, with one owner seeing it gain only +1 second in three days. However, some owners flag issues with the bracelet's end links sticking out and a sharp clasp edge, while one reviewer found the lume to be a disappointment. The polished bezel surface is also noted as prone to scratches. Overall, owners and reviewers rate the DOXA SUB 300 highly for its wearability and distinct design, despite some minor finishing concerns.

At a glance

12 of 29 specs differ
Diameter
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
SUB 30042.5mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT Watch72h
SUB 30038h
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT Watch300m
SUB 300300m
MSRP
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700
SUB 300$2,890

Full specifications

Case

4 specs
Diameter
42mm
42.5mm
Thickness
13.3mm
0mm
Lug-to-Lug
48.6mm
0mm
Lug Width
20mm
0mm

Crystal & Dial

4 specs
Crystal Shape
Domed
AR Coating
Anti-reflective coating on inner surface
Yes
Dial Color
Aquamarine
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova

Movement

3 specs
Caliber
6R54
Power Reserve
72h
38h
Jewels
24
0

Pricing

1 specs
MSRP
$1,700
$2,890
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