Overview
The Seiko SND401 (7T92-0AX0) is a 42mm men's quartz watch with a stainless steel case and a black-purple analog dial protected by hardlex crystal. It uses a 7T92 caliber quartz movement. The watch should run for up to 3 years before needing a new battery.
The SND401 is currently ranked #793 in popularity out of 1,137 watches in this catalog. Check availability on Amazon.com. You can see other models similar to this one on the left side of the pagein the similar watches section below. By clicking the checkbox under a similar model you can compare that model with this one side-by-side. We use nearly 100 different weighted criteria to calculate which models are the most similar to one another.
SND401 is only a partial model number. [learn more]
The case of the SND401 measures approximately 42mm wide (not including the crown) by 13mm thick and is water resistant to 100 meters. This should be sufficient for splashes, rain, baths, showers & swimming (shallow diving) but is not recommended for scuba diving. The crown does not screw down which increases the risk that it could be pulled out accidentally while under water. The stainless steel bezel is fixed (cannot be rotated). The gap between the lugs is 20mm and the rubber band is not listed as replaceable.
The SND401 provides the following features and complications:
- Second hand
- Seconds subdial
- Minute hand
- Hour hand
- Chronograph that includes subdials for hours, minutes and subseconds with a minimum resolution of 1/20 second and a maximum duration of 720 minutes. The central second hand is used by the chronograph. When the chronograph is not in use this hand is stationary. Seconds are shown on the seconds subdial.
- Date window to show the day of the month. Note that some watches may be damaged if you attempt to change the date between 8:00 PM and 2:00 AM, in which case you should change the time to be outside that range first then reset the time after adjusting the date. Check your watch manual for details.
Seiko Date Finder
If you have this watch and want to know when it was made simply enter the six digit serial number from the caseback below then click Find Date.
Learn more
Specifications [edit]
Full specifications are listed below. Please report any errors by clicking the edit link above then use the appropriate
icon to provide your input. If the SND401 is not exactly what you're looking for you can also search our catalog by selecting from an extensive list of criteria to help you find exactly what you are looking for.
- Type Quartz
- Caliber 7T92
- Power Reserve 3 Years
- Hacking
Yes
- Instructions Owner's Manual
- Case Width
42mm(without crown)
- Case Thickness
13mm
- Case Shape Round
- Case Material Stainless Steel
- Case Code 0AX0
- Crystal Material Hardlex
- Water Resistance 100 Meters(baths & shallow diving)
- Crown Position 03:00
- Screw Down Crown No
- Second Crown No
- Chrono Maximum 720 Minutes
- Chrono Minimum 1/20 of a Second
- Chrono Sub-Sec Yes
- Chrono Minutes Yes
- Chrono Hours Yes
- Second Hand Yes
- Seconds Subdial Yes
- Minute Hand Yes
- Hour Hand Yes
- Date Window Yes
- Band Width
20mm
- Replaceable Band No / Difficult
- Band Material Rubber
- Band Color Black 
- Dial Color Black, Purple 
- Dial Reference 0AM8
- Hour Markings Circles
- Subdial Position 6-9-12
- On the Dial
"Chronograph", Water Resistance
- Bezel Color Silver
- Bezel Function Fixed
- Bezel Material Stainless Steel
- On the Bezel Nothing
- Inner Bezel Color Black 
- On Inner Bezel 24 Hour Time
- Hour Hand Silver
- Minute Hand Silver
- Second Hand Silver
If you see anything that seems incorrect please let us know.