Seiko Cal. 6687 - 699

The 6687-699 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6687 caliber with 26j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-7daa8c08c752]

Also known as: Helmet, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

34mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1981

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