Seiko Cal. 6687 - 824

The 6687-824 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6687 caliber with 23j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-140892af306e]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1976

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