Seiko Prospex Reissue 1965 Heritage Diver's Watch 46.4mm SPB451J1

This Seiko Prospex watch is an evolutionary improvement of the original Eeiko Heritage Divers from 1965, which was already modified in 2020 but now adapts to the new times with several improved features.

Among the changes introduced in this model is the more compact box. It is made of 46.4mm stainless steel with a thickness of 13mm. That is, this model is smaller than the previous version in terms of space between handles, width, thickness and glass. The case back is screwed, as is the crown.

The crystal is curved sapphire with anti-reflective coating on the inner surface of the crystal. The dial is blue with Lumibrite treatment on the hands, indexes and bezel.

The bezel is unidirectional rotating in a blue tone.

Another of the most significant aspects of this watch is that it extends its water resistance to 300m (30 ATM). All thanks to the precision of the case back.

The bracelet is made of stainless steel with a secure locking folding clasp and extender. The links are slightly shorter than the previous model. They now have 8.0mm, which provides more fit on the wrist.

The calendar is positioned between 3 and 4 o'clock.

The Caliber 6R55 automatic movement with manual winding capability provides a power reserve of 72 hours. It has an accuracy of +25 to -15 seconds per day and is made of 24 jewels.

Among the functions offered by this watch are the hours, minutes and seconds and the seconds hand.