Side by side

Hamilton Khaki Navy Scuba AutovsGrand Seiko SLGB023

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.

Hamilton Khaki Navy Scuba Auto

Owners and reviewers widely praise the Hamilton Khaki Navy Scuba Auto for its exceptional value, robust construction, and distinctive dial designs, with many highlighting the 80-hour power reserve provided by the H-10 movement. The watch is frequently noted for its utilitarian dial, legible lume, and tactile bezel action. However, the 43mm case size is a recurring point of contention, with several sources deeming it large for everyday wear, though some owners find it comfortable and appreciate its substantial feel. One reviewer points out that the steel bracelet could benefit from a taper and a quick-adjust clasp, and another notes the unlumed bezel pip as a minor area for improvement. Overall, the Hamilton Khaki Navy Scuba Auto is highly regarded by owners and reviewers for its strong value and appealing tool-watch aesthetic, with the 43mm case size being the most significant consideration for potential buyers.

Grand Seiko SLGB023

Owners and reviewers widely praise the Grand Seiko SLGB023 for its comfortable 40.8mm titanium case and the smooth winding feel of its Spring Drive 9RB1 movement. The dial's gradient blue "ushio" motif is a highlight, though some reviewers note the bezel's fully lumed scale as a missed opportunity. Enthusiasts are divided on the power reserve indicator's placement and the design of the hour and minute hands. Overall, owners and reviewers rate the Grand Seiko SLGB023 highly for its comfortable titanium case and the refined Spring Drive movement.

At a glance

12 of 29 specs differ
Diameter
Khaki Navy Scuba Auto40mm
SLGB02340.8mm
Power Reserve
Khaki Navy Scuba Auto80h
SLGB02372h
Water Resistance
Khaki Navy Scuba Auto100m
SLGB023300m
MSRP
Khaki Navy Scuba Auto$975
SLGB023$12,400

Full specifications

Case

6 specs
Diameter
40mm
40.8mm
Thickness
12.95mm
12.9mm
Lug-to-Lug
0mm
48.5mm
Lug Width
20mm
21mm
Material
Stainless Steel
Titanium
Water Resistance
100m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Dial Color
Black

Movement

3 specs
Caliber
H-10
9RB1
Type
Automatic
Spring Drive
Power Reserve
80h
72h

Pricing

1 specs
MSRP
$975
$12,400
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