Beautiful watch. I wore it just a handful of times but just don't wear it enough to own it. Crystal near perfect and crystal clear. There are are a few hairline scratches on the clasp as seen in photos but somewhat inevitable if you wear the watch.  Let me know if you have any questions!

NFORMATION
Brand: Seiko 
Series: Prospex 
Model: SPB143J1 
Gender: Men 
Movement: Automatic 
Engine: Seiko 24 Jewels Automatic winding Cal. 6R35 
Power Reserve: Up to 70 hours 
 
FEATURES
Water Resistance: 200 Meters / 660 feet 
Calendar: Date display at the 3 o'clock position 
Functions: Date, Hour, Minute, Second 
+25 to -15 seconds per day 
Magnetic Resistance 
21,600 Vibrations per hour 
Unidirectional rotating bezel 
 
CASE
Case Size: 40.5 mm 
Case Thickness: 13.2 mm 
Case Material: Stainless Steel (Super Hard Coating) 
Crown Position: 03:00 
Case Shape: Round 
 
DIAL
Dial Type: Analog 
Dial Color: Grey black 
Glass: Curved sapphire crystal 
Crystal Coating: Anti-reflective coating on inner surface 
LumiBrite: Lumibrite on hands, indexes 
Dial Markers: Index 
 
BAND
Band Type: Bracelet 
Band Material: Stainless Steel 
Band Color: Silver 
Clasp: Three-fold clasp with secure lock, push button release with extender