SEIKO SKX013 The Great Fathom Mod #XXX645This SEIKO SKX013 is an automatic self winding mechanical watch featuring a 38mm diameter stainless stain case modified with (i) The Great Fathom Dial, (ii) The Great Fathom Hands, (iii) The Big Bang Bezel Black, (iv) Brushed Black Chapter Ring and (v) Polyamide 5 stripe Black & Grey Nato Strap. The pre production and perfected dial prototype. Only one of it kind exist! This is a modified SEIKO watch ready to be shipped out before the completion of

Browse the full dial collection to find the right face for the build

This is a donor dive case body

The iconic broad arrow handset in mirror-polished silver

which means it doesn't dictate the rest of the build's colour direction

Movement Seiko (SII) NH38 Automatic Movement - Open Heart

and a dated NH35 / NH36 (or NH70 / NH71 / NH72) also works

bezel insert

Hands Mercedes Hands v2 - Old Radium

Your screw-down crown and caseback are already included — they’re unique to this case and aren’t sold elsewhere

blue and yellow tones

Note This bezel sits 0

Strap Blue canvas strap with buckle closure