Dark mode
United Kingdom
Catalog   /   Watches, Jewelry & Accessories   /   Watches   /   Wrist Watches   /   Seiko

Seiko SPB321J1

Photos - Wrist Watch Seiko SPB321J1
Photos 4
Seiko SPB321J1
Main
Gendermen's
Country of originJapan
Mechanism
Movement typemechanical
Self-winding
Number of stones24 pcs
Caliber6R35
Second hand+
Power reserve70 h
Dial
Dial typeanalog
Type of indexmarks
Colourblue
Backlightluminous
Featuresdate
stop-second
Case and strap
Case shaperound
Case materialstainless steel
Colourstainless steel with blue
Glass materialsapphire
Rotating bezel
Screw-down crown
Strapsteel bracelet
Strap colourstainless steel
Band width20 mm
Claspclip (unfolding)
General specs
Waterproof200 WR / 20 ATM
Diameter (width)45 mm
Thickness13.4 mm
Weight190 g
Official Websiteseikowatches.com
Added to E-Catalogoctober 2023
The presence of the "Stop second" function allows you to stop the clockwork to set the time to the nearest second.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Seiko 2025 - new arrivals, bestsellers, and the most relevant models Seiko.
Everything you need to know about watch backlightingTypes of modern backlights in traditional and smart watches

Buy Seiko SPB321J1

When you make a purchase through links on our site, we may receive a affiliate commission.

Seiko Mens Prospex King Sumo Blue 'Graduation' Diver Watch SPB321J1

The Seiko SPB321J1 watch combines a 45mm round shaped stainless steel case and silver stainless steel bracelet with a fold over clasp. It has a blue analogue dial with luminescent hands, date display which is protected beneath scratch resistant sapphire crystal glass. Power is generated by the automatic movement. This model also has a water resista... morence of up to 200 metres.
T. H. Baker
Delivery: in United Kingdom
Report
£799.99

Seiko Mens Sumo Blue Dial Watch SPB321J1

The Seiko SPB321J1 watch combines a 45mm round shaped stainless steel case and silver stainless steel bracelet with a fold over clasp. It has a blue analogue dial with luminescent hands, date display which is protected beneath scratch resistant sapphire crystal glass. Power is generated by the automatic movement. This model also has a water resista... morence of up to 200 metres.
Houseofwatches.co.uk
Delivery: in United Kingdom
Report
£799.99

Seiko Prospex King Sumo SO-1346

Seiko Watch Prospex King Sumo SPB321J1.  This watch shape is affectionately named ‘Sumo’ by Seiko fans because of its size and shape and the 12 o’clock marker – it’s a substantially strong looking timepiece. This latest design has been updated with new modern features, including a ceramic bezel and super hard coating on the case and bracelet for du... morerability. A new 3 row bracelet has been specifically made for this model, while the clasp has also been modernised. The dial features a fine pressed pattern dial with gradations of blue. Prospex is a combination of the words 'Professional' and 'Specifications.' Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike. Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative watchmaking has changed global dive watch standards.
Jurawatches.co.uk
Delivery: in United Kingdom
Report
£1,120.00

Seiko Seiko Prospex King Sumo 'Graduation' Automatic Blue Dial Steel Bracelet Divers Men's Watch SPB321J1

Seiko Propsex King ‘Sumo’ Automatic Blue Dial Stainless Steel Bracelet Men’s Watch SPB321J1 This watch shape is affectionately named ‘Sumo’ by Seiko fans because of its size and shape and the 12 o’clock marker – it’s a substantially strong looking timepiece.This latest design has been updated with new modern features, including a ceramic bezel and... moresuper hard coating on the case and bracelet for durability. A new 3 row bracelet has been specifically made for this model, while the clasp has also been modernised.The dial features a fine pressed pattern dial with gradations of blue.Prospex is a combination of the words 'Professional' and 'Specifications.' Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative watchmaking has changed global dive watch standards. The Case: The Seiko Prospex ‘Sumo’ SPB321J1 is housed in a large case that measures 45mm in diameter and 12.9mm in height. The bulky proportions of the case are one theory suggested to explain the watch’s ‘Sumo’ moniker. One update to the SPB321 is that it is crafted out of stainless steel with Super-Hard coating, which improves the durability of the case. A further update is that the unidirectional rotating dark blue bezel insert is now made out of ceramic, as opposed to aluminum, which improves the longevity and resilience of the watch. It exhibits a 60-minute diving scale and a luminescent pip at the 60-minute mark. The case retains its twisted lugs with alternating polished bevels and brushed lines. The screw-down crown maintains its 4 o’clock position, whilst it also features a sapphire crystal like the previous generation of ‘Sumo’ did.  The Dial: Further developments to the ‘Sumo’ SPB321J1 are also present through the design of the dial, as it showcases a blue gradient effect which has a fine horizontal wave pattern. The dial does feature Sumo’s iconic markers and hands. The 12 o’clock marker features a unique marking which Seiko-fanatics have suggested bears a resemblance to the 'Mawashi' (the underwear worn by a Sumo during a match). The markers and hands are coated with Lumibrite, ensuring that the dial remains readable in the dark. A date-display window is located beside the 3 o’clock marker.  The Bracelet: The 3-link bracelet has also been redesigned, it is also made of stainless steel with a Super-Hard coating that has been treated to a fully brushed finish. It now features a fold over clasp with a secure lock, push-button release and wetsuit extension. The Functions: The Seiko ‘Sumo’ SPB321J1 is powered by Seiko’s 6R35 automatic movement, which has a 70-hour power reserve and has an accuracy of -15/+25 seconds per day. It is water resistant to 200 metres, which means that it can be worn when
WatchNation.com
Delivery: to United Kingdom
Report
£1,120.00