Prospex ‘Sumo’ SPB103J1

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. LumiBrite hour markers and hands increase legibility even in low light.

Seiko Prospex watches are designed for sports lovers and adventure seekers in the water, in the sky or on land. Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative watchmaking has changed global dive watch standards.

Seiko began as a clock repair store in Tokyo in 1881 with a purpose to pursue watchmaking excellence and has grown into a global timekeeping presence. Renowned for horological innovation, Seiko timepieces deliver precisely beautiful Japanese aesthetics, brought to life through in-house manufacture.

• Dial colour: green
• Movement: automatic calibre 6R35
• Power Reserve: 70 hours
• Case size: 45mm
• Function: date
• Water resistance: 200m
• Strap: stainless steel