

🕰️ Own the moment, master the journey with Seiko Prospex Alpinist.
The Seiko Prospex Automatic Green Dial Men's Watch SPB121J1 blends classic design with rugged functionality. Featuring a 39.5mm stainless steel case, scratch-resistant sapphire crystal, and a distinctive green crosshair dial, it’s powered by Seiko’s reliable automatic Caliber 6R35 movement with a 70-hour power reserve. Equipped with a rotating compass ring and 200-meter water resistance, this watch is engineered for both urban sophistication and outdoor adventure.











| ASIN | B083H6FJ5S |
| ASIN | B083H6FJ5S |
| Age Range Description | Adult |
| Band Color | Brown |
| Band Material Type | Leather |
| Band Width | 20 Millimeters |
| Bands | 1 |
| Batteries | 1 Unknown batteries required. (included) |
| Best Sellers Rank | #716,498 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #3,336 in Men's Wrist Watches |
| Brand Name | SEIKO |
| Case Diameter | 39.5 Millimeters |
| Case Material Type | Stainless Steel |
| Case Thickness | 13.2 Millimeters |
| Clasp Type | Tang Buckle |
| Closure Type | Buckle |
| Crystal | Sapphire Glass |
| Customer Reviews | 4.4 4.4 out of 5 stars (100) |
| Date First Available | January 20, 2020 |
| Department | mens |
| Dial Color | Green |
| Display | Analog |
| Embellishment Feature | Crystal |
| Face Style | Unique |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2 Grams |
| Item model number | SPB121J1 |
| Manufacturer | Seiko |
| Manufacturer | Seiko |
| Model Name | Alpinist |
| Model Number | SPB121J1 |
| Pattern | Crosshair |
| Power Source | Automatic |
| Product Dimensions | 5.91 x 3.94 x 1.97 inches; 0.07 ounces |
| Series Number | 121 |
| Shape | Round |
| Sport Type | Walking |
| Strap Type | Leather |
| Style Name | Modern |
| Warranty Type | Manufacturer |
| Watch Movement Type | Automatic |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Waterproof |
R**S
Perfect
Very happy , great watch
M**N
Another brilliant watch from Seiko
This watch is widely admired and widely reviewed. I have little to add, except that the compass feature is very cool. Google it and you will learn how to use it (although it is cloudy and rainy today, so pointing the hour hand at the sun would not be easy). This watch is exemplifies why Seiko is hands-down, the most innovative and admired watch company in the world. Not the only good watch company by a long shot, but from excellent $200 watches to mid-range watches like this and its legendary divers, to collectible Grand Seikos, the company never ceases to amaze.
R**Y
Keeps excellent time
Keeps excellent time. Well worth it
A**N
Good watch?
This is a very nice watch, but it does have one drawback. Even with the bubble on the date window it is still very hard to read. I had to send the watch back.
A**R
I would buy again
Excellent!
C**N
So nice looking on any strap
No regrets purchasing. Crown jewel in the collection of seikos.
R**N
Defective. New?
Received product and was defective out of the box. Had it on auto winder for 4 hours and watch never started. Also, when I opened the box it did not seem like it was packaged like a new watch, I think they sent me used/returned product. Returned the watch same day.
T**H
All the right vibes!
I have been aimlessly searching for a casual, weekend watch. This design flirted with me but spent a few weeks looking for something else. I decided to finally pull the lever and it was the right decision. I wear platinum jewelry but wanted something with two-tones that give me style flexibility. The longer you look at it the more attractive it becomes. Excellent quality and price point. Delivery and shipping was fast. Happy Birthday to me!
K**S
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.
P**R
An excellent Seiko watch, sapphire crystal glass, very good power reserve. A really nice looking watch bought at a good price.
M**A
This was probably last good Seiko available online at a decent price. After March 2023, you won't be able to buy a good Seiko at a reasonable price on Amazon. There are importers who are charging twice (even e times of actual market price) the amount these days online. Please avoid online shopping to buy good watches.
T**R
Beautiful, piece of art, the compass I couldn’t understand how it works :) , even I viewed a lot of YouTube videos explaining it.
B**.
Quelle plaisir que de la’porté tout les jours elle agréable à regarder fiable solide
Trustpilot
4 days ago
1 month ago