2018 Seiko Marinemaster 300 Black Diver Automatic SBDX017
Ref: SBDX017 (8L35-00K0)

Points of Mention

This watch is sold with its original Seiko box and paperwork. The watch comes paired with its original Seiko 20mm stainless steel bracelet brushed links and polished inner links with a signed fold clasp and a dive extension and is coated in Seiko’s Diashield which is scratch-resistant, all links are provided plus a Seiko waffle-style rubber strap with a Seiko keeper and buckle. The watch is from February 2018 and is sold in worn condition, but overall very fair condition as you can see from the photographs and comes with our 12-Months Warranty.

For more photos see here - https://drive.google.com/drive/folders/1H57cSa1ega7bg0jo_Bjw416x0B3b34cB?usp=drive_link

4K YouTube video, skip to 15:39 -  https://youtu.be/PrW6AGaFoX0

The Watch

Here we have a  2018 Seiko Marinemaster 300 Black Diver Automatic SBDX017, a modern interpretation of Seiko's first "Professional" dive watches such as the famous 62MAS. A 43.5mm brushed and zaratsu polished stainless steel monobloc case coated in Seiko’s Diashield super-hard coating, to get to the movement you have to go in from the crystal side, the case shape sits on the wrist like a cushion, and Seiko gets ergonomics so right, and a lug-to-lug length of 50mm and a thickness of 15mm gives the watch an impressive wrist presence. Chamfered polished edges lead the eye towards the broad drilled lugs, on the right side at 4 o’clock a screw-down crown with the Prospex logo stamped into it. The unidirectional stainless steel bezel has a black insert with a 60-minute scale in silver numbers and deep knurling for extra grip. A flat Hardlex crystal sits recessed above a matte black dial, an outer minute chapter ring surrounds the applied disc and baton indexes are outlined in stainless steel coated in LumiBrite to mark the hours. At 3 o’clock a framed date window, broad sword hands expertly brushed are coated in LumiBrite complemented by a lume-tipped sweeping seconds hand and text is applied to the dial with Seiko motif and “MarineMaster Automatic Professional 300m” highlighting its impressive water resistance. On the reverse, an embossed Seiko Tsunami is in the centre, inside an automatic Seiko 8L35, 26 jewels, 28,800 beats per hour, the movement has hand winding and hacking functionality for your convenience, based on the Grand Seiko calibre 9S55 it is hand-assembled at the Shizuku-Ishi Watch Studio in Morioka. The watch comes fitted on a Seiko 20mm stainless steel brushed links and polished inner links bracelet with a signed fold clasp and a dive extension and is coated in Seiko’s Diashield which is scratch resistant, all links are provided plus a Seiko waffle-style rubber strap with a Seiko keeper and buckle, and the watch also comes with its Seiko presentation box and papers.

Personal Note

The Brand