Seiko Cal. 6699 - 373

The 6699-373 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6699 caliber with 21j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-63af4101f11c]

Also known as: Tuna, Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1969

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