Seiko Cal. 6688 - 997

The Seiko 6688-997 represents an important milestone in Seiko's 1995 lineup. Powered by the 6688 caliber with 24j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-acdb4264c3c2]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1995

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