The 61GS Grand Seiko has one of the brand's most iconic case design. Beginning with the manual wind 44GS, the case design culminated in the automatic 61GS. The watch was designed by Taro Tanaka. His "Grammar of Design" would influence case design at Grand Seiko to this day. The 61GS case is a contrast in finishes and angles. The planes of the case are finished in a polished finish while the space between the lugs have a straight brush finish.

This example maintains most of the brushed finished between the lugs. The case edges are relatively sharp. The planes maintain some of their mirrored finish. Case edges show some wear but do not show signs of over polishing. Wonderful patina dial. Quickset date functions as it should. This is a nice example of an iconic Grand Seiko reference.

The watch keeps good time. The timegrapher shows -17 second per day. Beat errror is a little high at 0.4 ms and actual performance will vary while being worn. Unknown service history. We recommend a service for best performance. 

- Ref No. : 6145-8000
- Serial No./Year: 861875/1968
- Case:
    37mm diameter, 18mm lug width, 12.5mm thickness, 42mm Lug-to-lug.
    Stainless Steel
- Crystal: Acrylic
- Movement & Accuracy: 
    Caliber: 6145
    Complications: Quickset Date
    Measured Accuracy: -17 sec/day.
    Amplitude: 259°
    Beat Rate: 36,000 A/h
- Band: Replacement leather strap
- Condition Rank: (C): Good Condition 
- Country of Manufacture: Japan

Condition Rank Guide:
-N: Item is in New Old Stock condition (NOS). Shows little to no signs of wear apart from some minor handling wear.
-A: Item is in Excellent condition. Micro-scratches can be seen on the sides of the case, bezel, and/or bracelet. No pitting/gouges on the case or scratches in the crystal.
-B: Item is in Very Good condition. Minor scratches and scuffs can be seen on the sides of the case, bezel, and/or bracelet. No pitting/gouges on the case or deep scratches on the crystal.
-C: Item is in Good condition. Moderate scratches and scuffs can be seen on the sides of the case, bezel, and/or bracelet. Minor pitting/gouges may be visible on the case. One or less deep scratches may be visible on the crystal. See photos.
-D: Item is in Fair condition. Heavy scratches and scuffs can be seen on sides of the case, bezel, and bracelet. Significant pitting or gouges are visible on the sides of the case and the crystal shows multiple deep scratches
-F: Item is in Poor condition. Item is not functional. For parts or repair only.