---
product_id: 322311155
title: "Seiko Men's Japanese Mechanical Automatic Watch"
brand: "seiko"
price: "₨2006"
currency: LKR
in_stock: false
url: https://www.desertcart.lk/products/322311155-seiko-mens-japanese-mechanical-automatic-watch
store_origin: LK
region: Sri Lanka
---

# 41-hour power reserve with manual & automatic winding Water-resistant up to 100m (10 bar) 4R35 mechanical movement, 21,600 vibrations/hr Seiko Men's Japanese Mechanical Automatic Watch

**Brand:** seiko
**Price:** ₨2006
**Availability:** ❌ Out of Stock

## Summary

> ⌚ Elevate your wrist game with precision and style that never quits.

## Quick Answers

- **What is this?** Seiko Men's Japanese Mechanical Automatic Watch by seiko
- **How much does it cost?** ₨2006 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/322311155-seiko-mens-japanese-mechanical-automatic-watch)

## Best For

- seiko enthusiasts

## Why This Product

- Trusted seiko brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Timeless Elegance:** Minimalist deep blue sunray dial paired with a robust stainless steel case and bracelet for all-day confidence.
- • **Enduring Assurance:** Backed by a 3-year manufacturer’s warranty, this watch is built to keep pace with your ambitions.
- • **Precision in Motion:** Experience the smooth 21,600 vibrations per hour mechanical heartbeat powering your day.
- • **Dive-Ready Durability:** Water-resistant up to 100 meters—perfect for the active professional who never hits pause.
- • **Effortless Convenience:** Tri-fold push button clasp ensures secure fit and quick release, blending style with practicality.

## Overview

The Seiko Men's Japanese Mechanical Automatic Watch features the reliable 4R35 movement with 21,600 vibrations per hour and a 41-hour power reserve. Its 39.9mm stainless steel case and bracelet complement a minimalist deep blue sunray dial with date calendar. Water-resistant up to 100 meters and secured by a tri-fold push button clasp, this watch combines durability with classic elegance, all backed by a 3-year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08LJXFJGM |
| Additional Features | Second Hand, Water Resistant |
| Age Range Description | Adult |
| Band Color | Silver |
| Band Material Type | Stainless Steel |
| Band Width | 20 Millimeters |
| Bands | 1 |
| Best Sellers Rank | #149,806 in Fashion ( See Top 100 in Fashion ) #4,318 in Men's Wrist Watches |
| Brand Name | Seiko |
| Case Diameter | 39.9 Millimeters |
| Case Material Type | Stainless Steel |
| Case Thickness | 12.81 Millimeters |
| Clasp Type | Foldover Clasp With Push Button |
| Closure Type | Push-Button |
| Crystal | Sapphire Crystal |
| Customer Reviews | 4.6 out of 5 stars 890 Reviews |
| Dial Color | Blue |
| Display | Analog |
| Embellishment Feature | Stud |
| Face Style | Skeleton |
| Included Components | User Manual, Warranty Information, Watch Box |
| Item Type Name | Automatic Watch |
| Item Weight | 4.62 Ounces |
| Manufacturer | Seiko Watch Corporation |
| Manufacturer Part Number | SZSB013 |
| Material | Silver |
| Model Name | SRP839J1 |
| Model Number | SZSB013 |
| Pattern | Sunray |
| Power Source | Mechanical Automatic |
| Shape | Round |
| Sport Type | Diving, Multi-Sport, Swimming |
| Strap Type | Metal Bracelet |
| Style Name | Classic |
| Theme | Classic |
| UPC | 029665207265 |
| Watch Movement Type | Automatic |
| Water Resistance Depth | 330 Feet |
| Water Resistance Level | Waterproof |

## Images

![Seiko Men's Japanese Mechanical Automatic Watch - Image 1](https://m.media-amazon.com/images/I/41bQbY7m99S.jpg)
![Seiko Men's Japanese Mechanical Automatic Watch - Image 2](https://m.media-amazon.com/images/I/31+WnUpE1iL.jpg)
![Seiko Men's Japanese Mechanical Automatic Watch - Image 3](https://m.media-amazon.com/images/I/41NbnYwNtOL.jpg)
![Seiko Men's Japanese Mechanical Automatic Watch - Image 4](https://m.media-amazon.com/images/I/41wqwflMVDS.jpg)
![Seiko Men's Japanese Mechanical Automatic Watch - Image 5](https://m.media-amazon.com/images/I/51eTkmAR4oS.jpg)

## Questions & Answers

**Q: Why does my watch randomly stop? It works when I put it on and have to manually adjust the time. Is that behavior normal?**
A: The movement in this watch gets its energy from the movement of the wearer, if you move your arm the watch winds. Fully wound this movement can run for around 40 hours. If your activity level is low your arm movements may not be enough to wind the watch fully, so you may want to manually wind it every day.
 
The interesting part of a watch like this is that it keeps time by using gears and springs, not electronics. A quartz watch is more accurate than the most expensive mechanical watch, gaining or losing at most one second per day.

If the watch has stopped first wind it manually, then reset the time and date, and you should be good to go. These watches cannot be overwound, so give it about 40 turns.

**Q: Why does the dial only read "made in"? Are these not made in Japan?**
A: I had the same concern, especially for the green dial where only "Made in" appears in most photos (1st, 4th and 5th). It arrived with the full phrase "Made in Japan" in tact, both on the bottom of the dial and on the rim around the transparent back, i.e. everything OK (sold and shipped by amazon.com).

**Q: Can you swim, j work on boats the watch will always get wet.**
A: According to most standard descriptions of water resistance ratings, with 10bar of water resistance, it should be just fine for swimming and even snorkeling. The water resistance rating is based on the pressure induced by depth causing water to seep in past the rubber o-rings. The more pressure it's rated for (i.e. 10 bar) the deeper it can go, and for a longer time spent immersed in fluid. Many "dive" watches are rated to 20bar (200 meters or 600 feet) and that seems like an impossible depth you'll never reach but if you keep the watch submerged long enough there is a chance of intrusion. 10 bar (100 meters / 300 feet) therefore, should be more than adequate for most underwater excursions for a limited amount of time. 

Another factor I often consider is that watches rated for higher pressures/depths are built a little tougher (and are a bit larger as a result) so it's worth considering if you're looking for a watch that will withstand the rigors of daily wear for work on a boat where you might accidentally hit it against, say, stainless steel, railings, and other metal objects. I'd look for brushed metal cases and sapphire crystal for a tough tool watch. Ymmv.

**Q: El 012 y 015 la esfera es negra mate? Cual de los dos es más recomendable? Hay algún brazalete alternativo que le sirva? Gracias**
A: Cualquiera de los dos son excelentes,  no te arrepentirás.  Y si puedes buscarle correrás alternativas en sus medidas, pero la verdad, prefiero no cambiarselas para mantener su diseño y elegancia original

## Frequently Bought Together

- Seiko Men's Japanese Mechanical Automatic Watch
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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-08-19*