SEIKO PROSPEX SUMO AUTOMATIC WATCH SPB321J1 SPB321
Seiko Prospex SUMO Automatic SPB321
SEIKO PROSPEX SUMO AUTOMATIC WATCH SPB321J1 SPB321
Seiko Prospex SUMO Automatic SPB321
Seiko Prospex SUMO Automatic SPB321
Seiko Prospex SUMO Automatic SPB321

Seiko Prospex SUMO Automatic SPB321

SKU: SPB321
Regular price
£895.00 GBP
Regular price
Sale price
£895.00 GBP
Subtotal:
£895.00 GBP
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Product Description

The Seiko SPB321J1 is a robust automatic diver’s watch designed for reliable performance in and out of the water. Powered by the Caliber 6R35 automatic movement with manual winding capability, it offers an approximate 70-hour power reserve, date display, stop second hand function, and 24 jewels. Built with a stainless steel case with super hard coating, sapphire crystal, LumiBrite hands, indexes and bezel, and 200-meter diver’s water resistance, this timepiece delivers durability, visibility, and dependable everyday function.

SKU: SPB321

Case & Exterior
Case Material Stainless steel with super hard coating
Case Diameter 45.0 mm
Case Thickness 13.4 mm
Glass Material Sapphire crystal
Glass Coating Anti-reflective coating on inner surface
LumiBrite LumiBrite on hands, indexes, and bezel
Bezel Unidirectional rotating bezel
Crown Screw-down crown
Case Back Screw case back
Clasp Type Three-fold clasp with secure lock, push-button release, and extender
Water Resistance 200 m / 660 ft diver’s
Weight 190.0 g
Movement & Features
Caliber Number 6R35
Movement Type Automatic with manual winding
Power Reserve Approx. 70 hours
Accuracy +25 to -15 seconds per day
Jewels 24
Functions Date display
Stop second hand function


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