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SEIKO 5 SNK307 Automatic Watch

SNK307

Overview

The Seiko SNK307 (7S26-01T0) is a 38mm men's automatic watch with a stainless steel case and a black analog dial protected by hardlex crystal. It uses a 7S26 caliber self-winding mechanical movement that cannot be manually wound or hacked (the second hand does not stop when the crown is pulled out). It ticks 6 times per second which gives the second hand a smoother movement than quartz watches which tick once per second. The watch should run for up to 43 hours when fully wound and will self-wind when moved.

The SNK307 is currently ranked #427 in popularity out of 2,613 watches in this catalog. Check availability on Amazon.com. This watch is part of a family of nine 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 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.

This model may be available in other countries and currencies.

SNK307 is only a partial model number. [learn more]

The case of the SNK307 measures approximately 38mm wide (not including the crown) by 11mm thick and is water resistant to 30 meters. This should be sufficient for splashes & rain but is not recommended for baths, showers, swimming or diving. 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 SNK307 provides the following features and complications:

  • Second hand
  • Minute hand
  • Hour hand
  • Day window to show the day of the week including two language choices for the day (English and either Spanish, Arabic, Kanji, Chinese, French, German, Danish or Roman Numerals). When setting the day keep turning the crown to get to the next language. On most models SUN will be red and on some models SAT will be blue.
  • 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.


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 SNK307 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.

General

Movement

  • Type Automatic
  • Caliber 7S26
  • Jewels 21 
  • Beats per Hour 21,600 bph(6 bps)
  • Power Reserve 43 Hours
  • Manual Winding No 
  • Hacking No 
  • Instructions Owner's Manual

Case

  • Case Width 38mm(without crown)
  • Case Thickness 11mm
  • Case Shape Round 
  • Case Material Stainless Steel 
  • Case Code 01T0 
  • Crystal Material Hardlex 
  • Water Resistance 30 Meters(splashes & rain)
  • Crown Position 04:00 
  • Screw Down Crown No 
  • Second Crown No 

Complications

  • Second Hand Yes 
  • Minute Hand Yes 
  • Hour Hand Yes 
  • Day Window Yes 
  • Date Window Yes 

Band

  • Band Width 18mm
  • Replaceable Band No / Difficult
  • Band Material Bracelet 
  • Band Color Silver 

Dial

  • Dial Color Black 
  • Dial Reference 04R2 
  • Hour Markings Bars 
  • On the Dial

    5 Shield, "Automatic", "Jewels"
     

Bezel

  • Bezel Color Silver 
  • Bezel Function Fixed 
  • Bezel Material Stainless Steel 
  • On the Bezel Nothing

Inner Bezel / Chapter Ring / Outer Dial

  • Inner Bezel Color Black 
  • On Inner Bezel Roman Numerals

Hand Colors

  • Hour Hand Silver 
  • Minute Hand Silver 
  • Second Hand Silver 

If you see anything that seems incorrect please let us know.

SNK307


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