Celebrating Seiko's 145th anniversary, this limited-edition Prospex diver's watch features blue accents inspired by 'Seiko Blue' on the bezel and seconds hand. The stainless steel case has a compact, sharp design with straight blade-like surfaces, while the solid bracelet's centre links are chamfered for a refined finish. Powered by the automatic 4R35 calibre with a 41-hour power reserve, it offers a date display and stop-second hand function. The watch is water-resistant to 200 metres with a unidirectional rotating bezel and screw-down crown.

Caliber Number	4R35
Movement Type	Automatic with manual winding
Power Reserve	Approx. 41 hours
Jewels	23
Functions	Stop second hand, date display
Case Material	Stainless steel
Case Diameter	41.7mm
Case Thickness	12.3mm
Lug-to-Lug	49.5mm
Distance Between Lugs	20mm
Crystal	Hardlex
LumiBrite	LumiBrite on hands, indexes and bezel
Clasp	Three-fold clasp with secure lock, push button release with extender
Water Resistance	200m / 660ft diver's
Magnetic Resistance	4,800 A/m
Weight	170.0g
Limited Edition	9,999 pieces

Seiko Prospex 145th Anniversary Limited Edition Diver's Watch