Seiko Cal. 6687 - 963

The 6687-963 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6687 caliber with 32j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-74873ae96398]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1971

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