Side by side

Seiko Prospex Marinemaster 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

At a glance

14 of 29 specs differ
Diameter
Prospex Marinemaster Seiko Diver’s Watch 60th Anniversary Limited Edition45.4mm
Bradner GMT42mm
Power Reserve
Prospex Marinemaster Seiko Diver’s Watch 60th Anniversary Limited Edition72h
Bradner GMT40h
Water Resistance
Prospex Marinemaster Seiko Diver’s Watch 60th Anniversary Limited Edition600m
Bradner GMT180m
MSRP
Prospex Marinemaster Seiko Diver’s Watch 60th Anniversary Limited Edition$4,600
Bradner GMT$299

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
45.4mm
42mm
Thickness
16mm
15mm
Lug-to-Lug
50.4mm
50mm
Material
Titanium
316L Stainless Steel
Water Resistance
600m
180m

Crystal & Dial

4 specs
Crystal Shape
Curved
Flat
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
8L45
Seiko NH34A
Power Reserve
72h
40h
Jewels
35
25

Pricing

1 specs
MSRP
$4,600
$299

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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 Marinemaster Seiko Diver’s Watch 60th Anniversary Limited Edition

Owners widely praise the Prospex Marinemaster Seiko Diver’s Watch 60th Anniversary Limited Edition's titanium monobloc case construction and the dial's blue gradient finish. Some owners find the 45.4mm diameter and 16mm thickness too large, noting a poor dial-to-bezel ratio and excessive text on the dial. The 8L45 movement offers a 72-hour power reserve, with reported accuracy ranging from +10/-5 seconds per day to +25/-15 seconds per day. On balance, owners appreciate the watch's tool watch vibe and unique dial construction, despite some reservations about its size and 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.

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