Side by side

Grand Seiko SBGM245vsSeiko Prospex Sea 1965 Heritage Diver's Watch

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

SBGM245
Grand SeikoSBGM245
MSRP $6,100
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 SBGM245

Owners widely appreciate the Grand Seiko SBGM245 for its blend of sport and luxury, with one enthusiast highlighting its superior workmanship over quartz movements. However, opinions on its size vary, as one owner found the SBGM245 too large, preferring the comfort of a different variant. Overall, owners value the Grand Seiko SBGM245 for its refined craftsmanship, though its wearability is a point of personal preference.

Seiko Prospex Sea 1965 Heritage Diver's Watch

The Seiko Prospex Sea 1965 Heritage Diver's Watch is praised for its refined engineering and updated features, including a 300m water resistance and a 72-hour power reserve from the Caliber 6R55 movement in a 40mm case. Owners note its better build quality and interesting finishing with a mix of polished and brushed surfaces. The "Tranquil Teal" variant features a jewel-toned dial with a rippling-water pattern. However, some owners consider the price too high, and concerns exist regarding the accuracy of the 6R movements, with some reporting theirs run slow. One review notes a reflective dial that impacts legibility. On balance, owners and reviewers appreciate the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined design and improved specifications over previous generations, despite some reservations about movement accuracy and price.

At a glance

11 of 29 specs differ
Diameter
SBGM24540.5mm
Prospex Sea 1965 Heritage Diver's Watch40mm
Power Reserve
SBGM24572h
Prospex Sea 1965 Heritage Diver's Watch72h
Water Resistance
SBGM245200m
Prospex Sea 1965 Heritage Diver's Watch300m
MSRP
SBGM245$6,100
Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
40.5mm
40mm
Thickness
14.4mm
13mm
Lug-to-Lug
48.6mm
46.4mm
Water Resistance
200m
300m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

2 specs
Caliber
9S66
6R55
Jewels
25
24

Pricing

1 specs
MSRP
$6,100
$1,300
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Grand Seiko SBGM245 vs Seiko Prospex Sea 1965 Heritage Diver's Watch gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.