








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











| 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 |
P**R
Excellent Seiko watch
An excellent Seiko watch, sapphire crystal glass, very good power reserve. A really nice looking watch bought at a good price.
M**L
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!
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.
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.
R**S
Very happy , great watch
B**.
Quelle plaisir que de la’porté tout les jours elle agréable à regarder fiable solide
A**R
All the buying process was perfect I am very happy with the watch
Trustpilot
1 week ago
3 days ago