This is the first version of the Steinhart Ocean One Vintage GMT with the more black dial and the white/green Super Luminova C3. 

Great quality watch, good size for all wrists, and this model is in mint condition and full set. 

Case: stainless steel
Back: Stainless steel screwed, engraved
Diameter: 42 mm, without crown
height: ca 14,0 mm
Weight: 190 g
Dial: black
Crystal: Sapphire domed, with double anti-reflecting coatings on the interior side
Bezel: Stainless steel.
Indices: Super Luminova C3
Lug width: 22 mm (0.87 inches) - Strap length : 20 cm + 4, 1 cm pieces to adjust.
WaterRes: 300 metres/990 feet 30 ATM
Strap: stainless steel 22mm (0.87 inches), screwed
Buckle: stainless steel, safety clasp