Rotating inner compass bezel enables precise navigation in outdoor environments
Lumibrite hands and markers provide visibility in low-light conditions
Magnified date window allows for easy reading at a glance
Sapphire crystal with anti-reflective coating ensures durability and clear visibility
200m water resistance supports a wide range of outdoor activities
Summarized by Shop
The Seiko PROSPEX Collection, introduces a sleek new modern reinterpretation of the 1959 Alpinist wrist watch, paying homage to its pasts with an updated design. The automatic SRB121, has a 200 meter water resistance rating with a stainless steel screwed down crown to protect against dirt and moisture intrusion. The 39.5mm stainless steel
Movement
Automatic, 24 jewels
Caliber
6R35, beats 21,600 vph
Case Material
Stainless steel
Dial Color
Green with gold accents
Strap Material
Brown leather
Water Resistance
200 meters (20 bar)
Case Diameter
39.5 mm
Case Thickness
13.2 mm
Case Length
46.4 mm
Crystal
Sapphire, anti-reflective coating
Summarized by Shop
5.0
3 ratings
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1
Smooth transaction. Watch arrived very quickly. Would highly recommend this dealer.
D
Don · August 21, 2026
Seiko Alpinist
Great time piece and excellent service! I absolutely love this watch. The only aspect that feels out of place is the strap. I picked up the Lincoln bracelet from Uncle Seiko, and it immediately set things right. On a SS bracelet, this watch gives off Oyster vibes, but it has it's own unique personality. The gold indicators and cathedral hands are memorizing. My buying experience was excellent, and I highly recommend going in person.