"Professional 300m Diver/Ref.6159-7001" is a particularly rare model among Seiko divers. This model is also famous for being worn by adventurer Naoki Uemura when he climbed the world's highest mountain, Mount Everest. A very voluminous case with integrated lugs and a bidirectional rotating bezel for a bold design. The crown is on the 4 o'clock side so it doesn't interfere with the back of your hand, and the flat case back fits comfortably on your wrist. Although there are some minor scratches on the exterior due to age, the engravings on the case edges and back cover are still intact, and there is no discomfort in operation. The original black dial is in good condition, and the hands and indices are still in their original luminous condition. The belt is a vintage Seiko genuine urethane belt, and although there is a slight crack on the back side of the belt hole, it is in a usable condition.

【Product Details】

Brand: Seiko

Model: Professional 300m Diver

Reference: 6159-7001

Year of manufacture: 1969

Dial: original dial

Case material: SS

Case size: Height 50mm/Width 44mm (excluding crown)/Thickness 14mm

Lug width: 19mm

Belt: Seiko genuine urethane belt

Movement: Cal.6159A (self-winding)

Accessories: None

Warranty: 1 year

Condition: Used (vintage)

Waterproof function: non-waterproof

【Method of operation】

■How to set the time

(1) Turn the crown towards 6 o'clock to unlock.

(2) Pull the crown two clicks to operate the hands and set the time.

(3) After setting the time, gently push in the crown and turn it toward 12 o'clock to lock it.

■How to fast forward the calendar

After unlocking the watch, pull the crown one click to quickly advance the date.

*Do not perform fast forward operations when the hand is between 20:00 and 4:00 the next morning.