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SEIKO Chrono SND641 Quartz Watch
Overview
The Seiko SND641 (7T92-0GR0) is a 36mm men's quartz watch with a stainless steel case and a black 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 SND641 is currently ranked #577 in popularity out of 1,137 watches in this catalog and is on sale for $245.99 on Amazon.com (as of 2020‑07‑10 07:00 PDT - Details). This watch is part of a family of eight watches that are identical except for their color or strap. You can see the other variations in this family as well as other similar models 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.
This model may be available in other countries and currencies.
- £0.00 ( Details)
- $535.35 Amazon.ca (2020‑07‑10 06:01 PDT Details)
- EUR 0,00 ( Details)
- EUR 0,00 ( Details)
- EUR 0,00 ( Details)
- EUR 0,00 ( Details)
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SND641 is only a partial model number. [learn more]
The case of the SND641 measures approximately 36mm wide (not including the crown) by 11mm thick and is water resistant to 50 meters. This should be sufficient for splashes, rain, baths & showers but is not recommended for swimming or 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 not known 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 SND641 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.
General
- Price
- Popularity
#577 of 1,137 - Style Chronograph
- Gender Men's
Movement
- Type Quartz
- Caliber 7T92
- Power Reserve 3 Years
- Hacking Yes
- Instructions Owner's Manual
Case
- Case Width
36mm(without crown) - Case Thickness 11mm
- Case Shape Round
- Case Material Stainless Steel
- Case Code 0GR0
- Crystal Material Hardlex
- Water Resistance 50 Meters(baths & showers)
- Crown Position 03:00
- Screw Down Crown No
- Second Crown No
Complications
- 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
- Band Width
- Replaceable Band No
- Band Material Bracelet
- Band Color Gold, Gray
Dial
- Dial Color Black
- Dial Reference 0GX8
- Hour Markings Triangles
- Subdial Position 6-9-12
- On the Dial
"Chronograph", Water Resistance
Bezel
- Bezel Color Gray
- Bezel Function Fixed
- Bezel Material Stainless Steel
- On the Bezel Nothing
Inner Bezel / Chapter Ring / Outer Dial
- Inner Bezel Color None
- On Inner Bezel Nothing
Hand Colors
- Hour Hand Gold
- Minute Hand Gold
- Second Hand Gold
If you see anything that seems incorrect please let us know.
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