Side by side

Grand Seiko SBGA481vsSeiko Prospex Sea

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.

Grand Seiko SBGA481

Grand Seiko SBGA481 owners praise its light titanium case and sharp finishing, with one owner reporting it runs perfectly. Reviewers describe the SBGA481 as an unapologetically Grand Seiko creation with a unique hour hand and a "geeky, techy vibe" that some find daring. On balance, the consensus is that the Grand Seiko SBGA481 is a fun and daring watch that showcases the brand's distinctive design language.

Seiko Prospex Sea

Seiko Prospex Sea owners and reviewers praise its Marinemaster-style aesthetic, excellent case finishing, and impressive LumiBrite lume. The watch is powered by the 6R15 movement with a 50-hour power reserve and comes with both a steel bracelet and a silicone strap. Some owners find the Seiko Prospex Sea to be a great value and a suitable first "proper" watch, while others report it is uncomfortably big, thick, and heavy on smaller wrists. Reviewers note the GMT function is secondary with a less prominent scale, and the bezel's quieter clicks may not appeal to all. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and finishing at its price point.

At a glance

11 of 29 specs differ
Diameter
SBGA48144.5mm
Prospex Sea43.5mm
Power Reserve
SBGA48172h
Prospex Sea70h
Water Resistance
SBGA481200m
Prospex Sea200m
MSRP
SBGA481$11,100
Prospex Sea$1,500

Full specifications

Case

4 specs
Diameter
44.5mm
43.5mm
Thickness
14.3mm
13.3mm
Lug-to-Lug
50mm
51mm
Lug Width
23mm
22mm

Crystal & Dial

2 specs
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
9R65
Seiko 6R35
Type
Spring Drive
Automatic
Power Reserve
72h
70h
Jewels
25
24

Pricing

1 specs
MSRP
$11,100
$1,500
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