Seiko Prospex "New Sumo" Automatic Watch - SPB103J1

THE SUMO, A MODEL BORN IN 2007

The Seiko “Sumo” is one of the many much-loved and respected dive watches that are produced by the Japanese brand. Robust, rather simple, reliable, not especially elegant but still good looking, it also comes (as often with Seiko) with one of the best quality-price ratios you can imagine – you can easily find one for about EUR 500 on the street.

The Seiko Prospex Diver 200m SBDC031 was launched in 2007, as a mid-range offer, above the entry-level Turtle and Samurai and below the MarineMaster 300m. A better movement than the two affordable pieces on one side, a case with more attention to details too, but a lower water-resistance and no sapphire crystal like the MM300.

Model Number: SRB103J1

• Sapphire Crystal Glass
• Stainless steel Case
• 200-meter water resistance
• Japan Made Automatic 6R35 Movement with manual winding capacity
• Unidirectional rotating bezel
• Screw case back
• Screw-down crown
• Unidirectional rotating bezel
• 24 jewels
• Date display
• Stop second hand function
• Power reserve approx 70 hours
• Case Size 12.9mm Thickness, 45.0mm Diameter, 52.6mm Lug-to-lug
• LumiBrite on hands, index(es) and bezel