---
product_id: 190872620
title: "Seiko Alpinist Prospex Automatic Watch Green SPB121J1 Leather Strap"
brand: "seiko"
price: "₨19250"
currency: SCR
in_stock: false
reviews_count: 7
url: https://www.desertcart.sc/products/190872620-seiko-alpinist-prospex-automatic-watch-green-spb121j1-leather-strap
store_origin: SC
region: Seychelles
---

# sapphire crystal glass 200m water resistant 70+ hrs power reserve Seiko Alpinist Prospex Automatic Watch Green SPB121J1 Leather Strap

**Brand:** seiko
**Price:** ₨19250
**Availability:** ❌ Out of Stock

## Summary

> ⛰️ Elevate your wrist game with the Seiko Alpinist – where rugged meets refined.

## Quick Answers

- **What is this?** Seiko Alpinist Prospex Automatic Watch Green SPB121J1 Leather Strap by seiko
- **How much does it cost?** ₨19250 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/190872620-seiko-alpinist-prospex-automatic-watch-green-spb121j1-leather-strap)

## 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

- • **Dive-Ready Durability:** Waterproof up to 200 meters—perfect for the adventurous professional who never skips a beat.
- • **Precision in Every Tick:** Caliber 6R35 automatic movement with 24 jewels and 28,800 vibrations per hour for flawless timekeeping.
- • **Scratch-Resistant Elegance:** Sapphire crystal glass ensures your green dial stays pristine, reflecting your polished style.
- • **Endurance that Outlasts Your Week:** Over 70 hours of power reserve keeps you ticking through busy days and weekends without a pause.
- • **Compass-Ready for the Urban Explorer:** Rotating inner compass ring and grooved crown combine functionality with sleek design.

## Overview

The Seiko Alpinist Prospex SPB121J1 is a sophisticated automatic watch featuring a robust 6R35 mechanical movement with a 70+ hour power reserve, housed in a 39.5mm stainless steel case. Its striking green dial is protected by scratch-resistant sapphire crystal, complemented by a brown leather strap. Designed for the modern professional with a taste for adventure, it offers 200m water resistance and a unique rotating compass ring, blending precision engineering with timeless style.

## Description

Seiko Prospex Automatic Alpinist SPB121J1 / SPB121J Seiko Prospex Automatic WatchSPB121 Men's Dress WatchNickname: Seiko Prospex AlpinistCollection: Mechanical Watch with Manual Winding Hour, Minute and Second Hands, Date Display at 3 o'clock Position Precise Automatic Movement Caliber: 6R35 Analogue 28800 Vibrations / Hour (8/Second) Magnetic Resistance: 4800 A/(60 gauss). Shock protection: the Seiko SPB121J1 has a slide shock system as shock protection. Hand winding possibilities. Case diameter: 39.5 mm. Case height: 13.2 mm. Crown: grooved, screwed stainless steel crown with crown guard cam. Seiko watch comes with Instruction manual (English language not *). Delivered in original Seiko watch box incl. * card precise automatic movement caliber: 6R35 analogue 28800 vibrations / hour with 24 stones, second stop. Power reserve: more than 70 hours. Double-sided automatic winding (magic lever) and manual winding possibilities. Housing: stainless steel housing diameter 3.95 cm, height 1.3 cm. Casing base: screwed stainless steel base with glass base. Band: brown leather strap with pin buckleWatch glass: sapphire glass with date magnifierSpecial feature: rotating inner ring as a compass ring. Easy to use thanks to the ribbed stainless steel crown at the 04:00 o'clock position. Dial: green dial with gold-plated Arabic indexes. Water resistant: 20 bar. The Seiko SPB21J includes Instruction manual (English language not *). Delivered in original Seiko watch box incl. Full * card with serial number and our company stamp as an authorised Seiko dealer.

Review: Excellent Seiko watch - An excellent Seiko watch, sapphire crystal glass, very good power reserve. A really nice looking watch bought at a good price.
Review: Too expensive for what you receive. - The watch it’s ok but I’m so disappointed because they put that horrible strap on it! At this price point! If you want to buy this watch you have to order a bracelet in the same time!

## Features

- Seiko Automatic Men's Watch SPB121J. The SPB121J1 6R35 mechanical movement with a number of 24 bearings has the functions: hour, minute, second, date and compass function. Made of stainless steel, this is waterproof tested up to 20 bar/200 m. The green dial is protected by a scratch-resistant sapphire glass. The diameter of the SPB121J1 is about 39.5 mm without the watch crown. The case height is 13.2 mm. The power reserve with this automatic watch is fully
- charged state of more than 70 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083H6FJ5S |
| ASIN  | B083H6FJ5S |
| Age Range Description | Adult |
| Band Colour | Brown |
| Band Material Type | Leather |
| Band Width | 20 Millimetres |
| Batteries  | 1 Unknown batteries required. (included) |
| Best Sellers Rank | 3,077,795 in Fashion ( See Top 100 in Fashion ) 21,727 in Men's Wrist Watches |
| Brand Name | Seiko |
| Case Diameter | 39.5 Millimetres |
| Case Material Type | Stainless Steel |
| Case Thickness | 13.2 Millimetres |
| Character | fashion |
| Clasp Type | Tang Buckle |
| Closure Type | Buckle |
| Crystal | Sapphire Crystal |
| Customer Reviews | 4.5 4.5 out of 5 stars (94) |
| Customer reviews | 4.5 4.5 out of 5 stars (94) |
| Date First Available  | 20 Jan. 2020 |
| Department  | Men |
| Dial Color | Green |
| Display | Analog |
| Embellishment Feature | Crystal |
| Face Style | Green Dial |
| Included Components | Brown calf leather strap, original box, battery(unsure) |
| Is discontinued by manufacturer  | No |
| Item Shape | Round |
| Item Weight | 2 Grams |
| Item model number  | SPB121J1 |
| Manufacturer | Seiko |
| Manufacturer  | Seiko |
| Model Name | SPB121J1 |
| Model Number | SPB121J1 |
| Power Source | Mechanical" or "Automatic |
| Product Dimensions  | 15 x 10 x 5 cm; 2 g |
| Series Number | 121 |
| Sport Type | Walking |
| Strap Type | Adjustable |
| Style Name | strap |
| Warranty Type | Manufacturer |
| Watch Movement Type | Automatic |
| Water Resistance Depth | 200 Metres |
| Water Resistance Level | Waterproof |

## Images

![Seiko Alpinist Prospex Automatic Watch Green SPB121J1 Leather Strap - Image 1](https://m.media-amazon.com/images/I/610a5bXQK9L.jpg)
![Seiko Alpinist Prospex Automatic Watch Green SPB121J1 Leather Strap - Image 2](https://m.media-amazon.com/images/I/61EKoxJc9WL.jpg)
![Seiko Alpinist Prospex Automatic Watch Green SPB121J1 Leather Strap - Image 3](https://m.media-amazon.com/images/I/61Mp4iePSNL.jpg)
![Seiko Alpinist Prospex Automatic Watch Green SPB121J1 Leather Strap - Image 4](https://m.media-amazon.com/images/I/6190fhJv6uL.jpg)
![Seiko Alpinist Prospex Automatic Watch Green SPB121J1 Leather Strap - Image 5](https://m.media-amazon.com/images/I/711rKlQv4XL.jpg)

## Questions & Answers

**Q: What is the extra button/stem for?**
A: It’s for the compass. Bought this watch in April and love it .

**Q: Replacer original band available? Size for replacement 2nd question? Thank you for the help .**
A: Hello,

We have new original bands available. 

Please directly contact us if you'd like to purchase a new original strap.

Best regards,

Golden Time Jewelers
Seiko Authorized Dealer

**Q: Automatic? Description say quartz movement.**
A: Automatic and hand-winding movement with a hacking function, amazon controls the content and might stands to be updated.

**Q: Is the inner, rotating bezel/compass black or green?**
A: Hello,

It's green.

Best regards,

GTJ

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Seiko watch
*by P***R on 2 June 2022*

An excellent Seiko watch, sapphire crystal glass, very good power reserve. A really nice looking watch bought at a good price.

### ⭐⭐⭐ Too expensive for what you receive.
*by M***L on 21 October 2020*

The watch it’s ok but I’m so disappointed because they put that horrible strap on it! At this price point! If you want to buy this watch you have to order a bracelet in the same time!

### ⭐⭐⭐⭐⭐ Review
*by K***S on 4 June 2025*

Have been eyeing this for a year for my husband. Watch enthusiast! It was perfect. Just like the picture. There are some complaints about the band. He felt it was stiff but tried to soften it up but he will probably get another metal band. Beautiful watch.

## Frequently Bought Together

- Seiko Prospex"Alpinist" Compass Green Dial Sapphire Glass Leather Watch SPB121J1
- Barton Quick Release - Top Grain Leather Watch Band Strap - Choice of Width - 16mm, 18mm, 19mm, 20mm, 21mm 22mm, 23mm or 24mm
- SEIKO Automatic Watch for Men - Presage Cocktail Time - Patterned with Golden Numerals and Date Calendar, 50m Water-Resistant

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sc/products/190872620-seiko-alpinist-prospex-automatic-watch-green-spb121j1-leather-strap](https://www.desertcart.sc/products/190872620-seiko-alpinist-prospex-automatic-watch-green-spb121j1-leather-strap)

---

*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-12*