Side by side

Zelos Hammerhead (Tantalum LE)vsGrand Seiko SBGJ237

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

Hammerhead (Tantalum LE)
ZelosHammerhead (Tantalum LE)
MSRP $1,499
SBGJ237
Grand SeikoSBGJ237
MSRP $7,600

At a glance

13 of 29 specs differ
Diameter
Hammerhead (Tantalum LE)44mm
SBGJ23744.2mm
Power Reserve
Hammerhead (Tantalum LE)40h
SBGJ23755h
Water Resistance
Hammerhead (Tantalum LE)300m
SBGJ237200m
MSRP
Hammerhead (Tantalum LE)$1,499
SBGJ237$7,600

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
44mm
44.2mm
Thickness
13mm
14.4mm
Lug-to-Lug
44mm
50.6mm
Lug Width
22mm
21mm
Material
Titanium
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Tantalum LE
Black

Movement

2 specs
Caliber
Seiko NH35
9S86
Power Reserve
40h
55h

Pricing

1 specs
MSRP
$1,499
$7,600

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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.

Zelos Hammerhead (Tantalum LE)

The Zelos Hammerhead (Tantalum LE) features a forged carbon dial and bezel insert with infused lume. On balance, owners and reviewers rate the Zelos Hammerhead (Tantalum LE) highly for its unique material composition and substantial feel.

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.

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