Side by side

Hamilton Khaki Navy BeLOWZERO Auto TitaniumvsSeiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition

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 BeLOWZERO Auto Titanium

The Hamilton Khaki Navy BeLOWZERO Auto Titanium is widely noted for its substantial 46mm titanium case, with some owners finding it large and heavy, particularly on the bracelet, though others find the titanium version manageable and appreciate its sporty casual wearability. Readability in low light is a concern, with the lume described as not good. The watch features 1000m water resistance and an 80-hour power reserve, with a stealthy black dial and a distinctive arrow-tipped seconds hand. On balance, owners and reviewers highlight its robust build and impressive water resistance as key strengths for a sporty casual watch.

Seiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition

Owners widely praise the Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition for its refined presence and intricate dial patterns, with some favoring its unique red dial and steel bezel over other Speedtimer models. However, some owners criticize the 24-hour subdial as useless, the date window as recessed, and the stock bracelet as difficult to fit, while others find the pushers stick out too much. One owner notes the $995 price point is high for the 6R55 movement, suggesting a lower range, though others appreciate the Seiko finishing and charm. On balance, owners rate the Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition well for its unique aesthetic and finishing, despite some functional and value concerns.

At a glance

14 of 29 specs differ
Diameter
Khaki Navy BeLOWZERO Auto Titanium46mm
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Power Reserve
Khaki Navy BeLOWZERO Auto Titanium80h
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Water Resistance
Khaki Navy BeLOWZERO Auto Titanium1,000m
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
MSRP
Khaki Navy BeLOWZERO Auto Titanium$2,175
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
46mm
42mm
Thickness
15.7mm
14.6mm
Lug-to-Lug
46mm
49.5mm
Lug Width
24mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
1000m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
H-10
8R48
Power Reserve
80h
45h
Jewels
25
34

Pricing

1 specs
MSRP
$2,175
$2,500
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