Last Updated:  May 25th, 2020

Seiko SNK809 vs SNZG15 – Great Seiko 5s

The Seiko 5 series has some super affordable watches that are also very modern and stylish. And the SNK809 is one of the most famous!

But it’s close brother the SNZG15 is also worth a look if you like the style because they are very very similar.

Before diving into the differences, it is worth comparing the specs to see what, if anything stands out here.

Seiko Men's SNK809 Seiko 5 Automatic Stainless Steel Watch with Black Canvas Strap
Seiko Men's 5 Automatic Watch SNZG15K1
Model number
SNK809
SNZG15
Series
Seiko Series 5
Seiko Series 5
Movement
Seiko 7s26 Automatic
Seiko 7S36 Automatic
Vibrations per hour
21,600 bph
21,600 bph
Power reserve
41 hours
41 hours
Complications
Day/Date
Day/Date
Diameter
37mm
41mm
Thickness
11mm
12mm
Strap Thickness
18mm
22mm
Strap
Canvas
Canvas
Clasp
Buckle with tang
Buckle with tang
Dial Window
Scratch Resistant Hardlex
Scratch Resistant Hardlex
Case
Stainless Steel
Stainless Steel
Case Back
Skeleton
Skeleton
Water Resistance
30 Meters / 99 Feet
100 Meters / 330 Feet
Seiko Men's SNK809 Seiko 5 Automatic Stainless Steel Watch with Black Canvas Strap
Model number
SNK809
Series
Seiko Series 5
Movement
Seiko 7s26 Automatic
Vibrations per hour
21,600 bph
Power reserve
41 hours
Complications
Day/Date
Diameter
37mm
Thickness
11mm
Strap Thickness
18mm
Strap
Canvas
Clasp
Buckle with tang
Dial Window
Scratch Resistant Hardlex
Case
Stainless Steel
Case Back
Skeleton
Water Resistance
30 Meters / 99 Feet
Seiko Men's 5 Automatic Watch SNZG15K1
Model number
SNZG15
Series
Seiko Series 5
Movement
Seiko 7S36 Automatic
Vibrations per hour
21,600 bph
Power reserve
41 hours
Complications
Day/Date
Diameter
41mm
Thickness
12mm
Strap Thickness
22mm
Strap
Canvas
Clasp
Buckle with tang
Dial Window
Scratch Resistant Hardlex
Case
Stainless Steel
Case Back
Skeleton
Water Resistance
100 Meters / 330 Feet

The Main Differences – SNK809 vs SNZG15

Apart from the fact that the SNK series is usually the most affordable, there are also some internal and external differences worth noting.

Movement

First, the SNK809 uses the older 7s26 movement, compared to the 7s36 in the SNZG15. Although, if you check the actual features and specs, the are more or less the same.

Water Resistance

There is a significant difference in water resistance, with the SNK809 being only 30m (splash-proof) while the SNGZ15 is 100m so you should be able to swim with it no problem.

Design – Size & Dial Details

The other main differences are in the dial, with the smaller SNK809 being only 37mm across, while the SNGZ15 is larger at 41mm. The case is only 1mm difference in thickness, but the SNK809 also uses the smaller 18mm strap, while the SNGZ15 uses the 22mm.

They are both field style watches which focus more on functionality than style, but this will suit many of you. The SNK809 has a dominant minute numbering on the outer ring, with the inner ring of numbers showing the hours.

The SNGZ15 has a recessed inner part of the dial with hours on the outer ring, and a 24hr set on the inner ring (so no minute numbering).

The hands are also diamond-shaped on the SNK809, while the SNGZ15 has batons. 

They both have a day/date window at 3 o’clock which is not surprising given they are Seiko Series 5 watches. But what is interesting is the placement of the crown, which is at 4 o’clock on the SNK809 (common in many Series 5 dive watches) but 3 o’clock on the SNGZ15.

There are of course other differences you will find in the markers and writing on the dial, but the above are the most noteworthy.

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