Seiko Cal. 6691 - 608

The 6691-608 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6691 caliber with 24j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-d2d01ba896f0]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1971

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