Seiko Prospex Diver's King Sumo Gray 45mm SPB323J1 Watch

Seiko fans affectionately call this case “sumo” due to its volume and shape and the 12 o’clock marker. This latest design has been updated with new modern features, including a black bezel with a super-hard coating on the case and bracelet for added scratch resistance and durability. A new 3-row bracelet has been made specifically for this model, while the clasp has also been modernized.

The steel strap is particularly comfortable thanks to the three folds with secure locking, which also features push-button release with extender.

Automatic movement with manual winding capacity, caliber 6R35. Accuracy of +25 to -15 seconds per day. 24 jewels. Seconds stop function.

Stainless steel case with super hardened coating. The case size is 45mm in diameter.

Sapphire crystal with anti-reflective coating on the inner surface.

LumiBrite on hands, indexes and bezel.

Date display at 3 o'clock.

Unidirectional rotating bezel.

Screw-down crown and screw-down case back.

Water resistant to 200 meters (20 bar).