The 615x movement based “Specials” were first introduced in the “Suwa Let’s Go” publication in December 1970. The “Specials” truly do deserve their name, as they were regulated with more precision than even the Grand Seiko Standard, to just /-3 seconds per day. with a perfect 36mm case this watch is a great vintage piece for any collection.

Information:

Pre-Owned: Grand Seiko 6156-8001

Reference: 6156-8001

Circa: 1970’s

Dial: White - has orange speckles

Bracelet: Leather Strap

Case Size: 36mm x 9.75mm Thickness x 41mm Lug to lug

Lug Width: 18mm

Case Metal: Stainless Steel

Case back: On the watch is an exhibition caseback but it also comes with the original gold medallion back as well.

Movement: Automatic

Functions: Hours, Minutes, Seconds, Day-Date

Box and Papers: Box and papers

Crystal: Sapphire

Bracelet size: 7.75”

Caliber: 6156A

Condition:

Case has light micro wear throughout. Strap is a in great shape. Dial has speckles of patina on the dial. Hands and crystal are in great shape. Running strong with no history.

About Grand Seiko

Grand Seiko emerged in 1960 as a high-end watch line from Seiko, aiming to challenge Swiss dominance in luxury watchmaking. The brand quickly established itself with Japan's first chronometer-grade watch and later gained renown for its innovative Spring Drive technology, which combines the best of automatic and quartz movements. In 2017, Grand Seiko became an independent entity, solidifying its position in the luxury watch market.

The brand's design philosophy, known as the "Grammar of Design," was established in 1967 with the Grand Seiko 44GS. This aesthetic approach emphasizes legibility, refined appearances, and distinctive features like multi-faceted markers and hands, a half-recessed crown, and the meticulous Zaratsu polishing technique. Grand Seiko continues to push boundaries in watchmaking, as evidenced by recent innovations like the "Kodo Constant-Force Tourbillon," while maintaining its commitment to precision engineering and unique design language.