Seiko Prospex Night Vision Series "Sumo" Limited Edition SPB433J1

The last new edition to the Seiko Black Series is a limited-edition ƒ??Sumoƒ?� of 3,500 pieces. The SPB433 is a 200m-rated dive watch and comes with a bracelet, sapphire crystal, and ceramic bezel. Itƒ??s certainly a larger watch with its 45mm diameter and 52.6mm lug-to-lug distance. The thickness is still in the realm of reasonable at 13.4mm. As a slightly higher-end Prospex model, this watch features the 6R35 automatic movement with a 70-hour power reserve.

Movement

Caliber Number

6R35

Movement Type

Automatic with manual winding

Precision

+25 to -15 seconds per day

Power reserve

Approx. 70 hours

Jewels 24

Functions

• Stop seconds hand function
• Date display

Case/Band

Case Material

Stainless steel (hard coating)with ceramic bezel

Case Size

Thickness:13.4mm
Diameter:45.0mm
Lug-to-lug:52.6mm

Crystal

Sapphire crystal

Crystal Coating

Anti-reflective coating on inner surface

LumiBrite

LumiBrite on hands, index(es) and bezel

Clasp Three-fold clasp with secure lock , push button release with extender

Distance between lugs?ÿ20mm

Features

• LIMITED EDITION on the case back
• Serial number engraved on the case back
• Unidirectional rotating bezel
• Screw-down crown
• Three-fold clasp with secure lock and extender
• Screw case back