Seiko Prospex Mechanical Automatic Diver's 200M Green Sumo SPB103

Seiko Prospex Mechanical Automatic Diver's 200M 2019 "Green" Sumo 

SPB103
(JDM Version Model: SBDC081)

Condition: New Old Stock (NOS) — authentic, unworn, original production. Please note: factory warranty may have expired due to the item’s production date.

Go Green, Go Bold: The Seiko Sumo SPB103J1 Is a Dive Watch Like No Other

The Seiko Prospex SPB103J1, affectionately known as the Green Sumo, is a standout in Seiko’s dive watch lineup — and a favorite among collectors worldwide. This Japan Domestic Model brings a bold splash of color to the iconic Sumo silhouette, featuring a rich green sunburst dial and matching bezel that instantly sets it apart from the sea of standard blue divers.

Crafted for those who crave something different, the SPB103J1 combines Seiko’s legendary dive-ready durability with a fresh, eye-catching design. The green dial shimmers with depth and character, while the classic Sumo case profile delivers the wrist presence fans love. Whether you're a seasoned diver, a Seiko enthusiast, or simply looking for a statement piece, this model checks all the boxes.

With its unique colorway, robust build, and status as a Baselworld 2019 release, the SPB103J1 is more than just a watch — it’s a conversation starter, a collector’s gem, and a bold expression of style

Available now — fast shipping, guaranteed authenticity, and trusted service for watch lovers around the globe.

SPB103 Specifications:

Movement
Caliber: 6R35
Automatic with manual winding capacity
Accuracy +25 to -15 seconds per day
Antimagnetic
Jewel: 24

Exterior
Case Material: Stainless steel
Case Size: Diameter 45mm, Thickness 12.9mm, Length 52.6mm
Glass: Sapphire crystal
LumiBrite: Lumibrite on hands, hour marker, and bezel

Other Details
Water Resistance: 200m 
Screw case back
Screw-down crown
Unidirectional rotating bezel
Date display
Stainless Steel Band

* Kindly note that the displayed image is either a graphic representation or a prototype and may not reflect the final product precisely. Color variations may occur due to differences in browsers, display settings, or devices used for viewing. Additionally, the case back orientation on the actual product may differ from what is shown in the photograph.