Side by side

Grand Seiko SBGJ237vsSugess Seestern S434 Pro Diver

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

SBGJ237
Grand SeikoSBGJ237
MSRP $7,600
Seestern S434 Pro Diver
SugessSeestern S434 Pro Diver
MSRP $249

At a glance

15 of 29 specs differ
Diameter
SBGJ23744.2mm
Seestern S434 Pro Diver40mm
Power Reserve
SBGJ23755h
Seestern S434 Pro Diver40h
Water Resistance
SBGJ237200m
Seestern S434 Pro Diver200m
MSRP
SBGJ237$7,600
Seestern S434 Pro Diver$249

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
44.2mm
40mm
Thickness
14.4mm
12mm
Lug-to-Lug
50.6mm
46mm
Lug Width
21mm
20mm
Material
Stainless Steel
Stainless Steel/Rose Gold
Caseback
Solid
Engraved

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Black
2 Salmon
Lume
None
Super-LumiNova BGW9

Movement

4 specs
Caliber
9S86
NH35
Beat Rate
28,800 vph
3 vph
Power Reserve
55h
40h
Complications
None
GMT, Chronograph, Moonphase, Date

Pricing

1 specs
MSRP
$7,600
$249

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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.

Grand Seiko SBGJ237

Grand Seiko SBGJ237 owners and reviewers praise its impeccable finishing, Hi-Beat 36,000vph movement, and functional GMT complication. The watch is noted for its good value at €7,000, featuring a stainless steel bracelet with alternating brushed and polished surfaces, and a sapphire bezel with a day/night indicator. Reviewers highlight the lovely lume and the bezel's vintage-inspired, asymmetric color split, which uses LumiBrite for low-light legibility. The 9S86 Hi-Beat movement offers impressive accuracy of -5 to +3 seconds per day and a 55-hour power reserve. The SBGJ237 boasts 200-meter water resistance. However, the 44.2mm case size, measuring 14.4mm thick, may require slightly larger wrists, and its elevated crystal and less prominent bezel contribute to a thickness that might feel less substantial in person. Overall, owners and reviewers highly regard the Grand Seiko SBGJ237 for its combination of finishing, movement technology, and GMT functionality at its price point.

Sugess Seestern S434 Pro Diver

Owners widely praise the Sugess Seestern S434 Pro Diver for its impressive finishing and craftsmanship at its price point, highlighting the applied indices that play with light, excellent BGW9 lume, and attractive color options. Specific positive notes include the domed sapphire crystal, short lug-to-lug, and on-the-fly clasp adjustment. However, some owners report quality control issues such as misaligned bezels or indices, while others with V2 models experience no such problems. Caveats include slight bezel back play, light AR coating on the crystal, and a clasp that could be smoother, with one owner desiring a color-matched date wheel. On balance, owners rate the Sugess Seestern S434 Pro Diver highly for its exceptional value and build quality, particularly the dial finishing and lume.

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