Side by side

Seiko Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited EditionvsSpinnaker Bradner GMT

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
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 Seiko Diver’s Watch 60th Anniversary Limited Edition

The Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition features a 40mm case, 300m water resistance, and a 72-hour power reserve from the Calibre 6R55 movement, with a new grey bezel insert and a wave-patterned silvery-white dial. Owners find the watch attractive and the large case wears well without feeling bulky. However, some consider the price of €1900 for a 6R54 movement with an accuracy of +25/-15 seconds per day to be too high, and the production run of 6000 units is not seen as a true limited edition. Overall, owners find the Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition aesthetically pleasing with good wearability, but express concerns regarding its value proposition and movement accuracy for the price.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

From video reviewers

The watch offers excellent dial legibility and a functional internal rotating 24-hour bezel. The water resistance is rated at 200 meters.

At a glance

13 of 29 specs differ
Diameter
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition42mm
Bradner GMT42mm
Power Reserve
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition72h
Bradner GMT40h
Water Resistance
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition300m
Bradner GMT180m
MSRP
Prospex Sea Seiko Diver’s Watch 60th Anniversary Limited Edition$1,750
Bradner GMT$299

Full specifications

Case

6 specs
Category
Diver
GMT
Thickness
13.3mm
15mm
Lug-to-Lug
48.6mm
50mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
180m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Brown
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R54
Seiko NH34A
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,750
$299
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