Side by side

Hemel HD24 AutomaticvsGrand Seiko STGK031

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

HD24 Automatic
HemelHD24 Automatic
MSRP $300
STGK031
Grand SeikoSTGK031
MSRP $6,600

At a glance

13 of 29 specs differ
Diameter
HD24 Automatic40mm
STGK03130mm
Power Reserve
HD24 Automatic40h
STGK03150h
Water Resistance
HD24 Automatic200m
STGK031100m
MSRP
HD24 Automatic$300
STGK031$6,600

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
40mm
30mm
Thickness
13mm
10.5mm
Lug-to-Lug
48mm
36.2mm
Lug Width
20mm
15mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Yes
Dial Color
Gallant USAF Edition
Black

Movement

2 specs
Caliber
Seiko NH38A
9S27
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$300
$6,600

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