SEIKO Chrono SNA143 Quartz Watch
Overview
The Seiko Premier SNA143 (7T62-0BG0) is a 38mm men's quartz watch with a stainless steel case and a white analog dial protected by hardlex crystal. It uses a 7T62 caliber quartz movement. The watch should run for up to 3 years before needing a new battery.
The SNA143 is currently ranked #686 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 page. 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.
SNA143 is only a partial model number. [learn more]
The case of the SNA143 measures approximately 38mm wide (not including the crown) by 10mm 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 18mm and the bracelet band can be adjusted to fit using a link removal tool but may be difficult to replace with another band due to the shape of the lugs.
The SNA143 provides the following features and complications:
- Second hand
- Seconds subdial
- Minute hand
- Hour hand
- Alarm subdial
- Dual time subdial
- Chronograph that includes a subdial for minutes with a minimum resolution of 1/5 second and a maximum duration of 60 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 
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General
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Search: eBay | Chrono24 - Popularity
#686 of 1,137 - Style Chronograph
- Gender Men's
Movement
- Type Quartz
- Caliber 7T62
- Power Reserve 3 Years
- Hacking Yes
- Instructions Owner's Manual
Case
- Case Width
38mm(without crown) - Case Thickness 10mm
- Case Shape Square
- Case Material Stainless Steel
- Case Code 0BG0
- Crystal Material Hardlex
- Water Resistance 100 Meters(baths & shallow diving)
- Crown Position 03:00
- Screw Down Crown No
- Second Crown No
Complications
- Chrono Maximum 60 Minutes
- Chrono Minimum 1/5 of a Second
- Chrono Minutes Yes
- Second Hand Yes
- Seconds Subdial Yes
- Minute Hand Yes
- Hour Hand Yes
- Alarm Subdial Yes
- Dual Time Subdial Yes
- Date Window Yes
Band
- Band Width 18mm
- Replaceable Band No / Difficult
- Band Material Bracelet
- Band Color Silver
Dial
- Dial Color White
- Dial Reference 0BK8
- Hour Markings Arabic Numerals
- Subdial Position 6-9-12
- On the Dial
"Chronograph", Water Resistance
Bezel
- Bezel Color Silver
- Bezel Function Fixed
- Bezel Material Stainless Steel
- On the Bezel Nothing
Inner Bezel / Chapter Ring / Outer Dial
- Inner Bezel Color White
- On Inner Bezel Bars
Hand Colors
- Hour Hand Black
- Minute Hand Black
- Second Hand White
If you see anything that seems incorrect please let us know.
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